Tug Forum

Specialist Types Of Tug Boat => Classic Diesel Tugs => : sea monkey September 27, 2017, 20:50:48

: 1960s Refinery Tug – Parahaki
: sea monkey September 27, 2017, 20:50:48
Well, I’ve had 6 months away from the bench and I’m definitely ready to start another project.

I still have a couple of tiny things to do to completely finish my USN YTL James O’Brien. Only the anchors and the deck rain awning framework – hopefully only a few hours, maybe a day in total.

And a few days work to finish the little Hikurangai. Small fiddly stuff but after so long away from the bench I need to psych myself up before I start on any fussy detail work. I’ll ease myself back into those 2 projects over the next few weeks.

So in the meantime I’ve started on a new build – another New Zealand tug, display only.
This time it is a 1960s refinery tug – the Parahaki from Whangarei, the northernmost port in New Zealand.

The Parahaki and an identical sister ship, the Ruamanga, were built for the Northland Harbour Board in 1963 to service the Marsden Point oil refinery. These 40m (131.5ft), 375 ton, diesel electric, 1500HP tugs were designed and built in the UK by Brooke’s of Lowestoft.

They are big – even at 1/50 I’ll have trouble convincing my wife that we have room for this big bugger.

While they don’t have particularly attractive lines, they are distinctive and look powerful and business like. It may be stretching the point to call them 'classics'. They were designed for handling large tankers, rescue work, and had some impressive firefighting equipment.

In 1997, after 34 years in Whangarei, they were sold, renamed Alfred Brown and Stanley Brown, and moved to the Cook Islands up in the Pacific.
In 2001 they were sold again, renamed Ralik and Ratak, and moved to the even more remote Marshall Islands.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey September 27, 2017, 20:53:12
There is very little reference of either tug and this is everything I have, just a few photos. I contacted the present owners several times but no response.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey September 27, 2017, 20:53:40
There is a 1/32 model, built in the 60s, of the Parahaki in the Auckland Maritime Museum. It’s not a makers’ model but it is pretty good and that is what I’ll be basing my version on.
: Re: 1960s Refinery Tug – Parahaki
: 2tugboats September 29, 2017, 05:25:00
Nice collection of pictures for your build Sea Monkey. I find the "classic" lines refreshing and
as you said, ". . .they are distinctive and look powerful and business like." Thank you for
sharing here. . .made my day.

Michael
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 01, 2017, 17:23:43
Some of you may have seen some of my previous builds and this one will follow pretty much the same same process.

All of my subjects are local NZ tugs and some don't have much reference material. This is one case in particular – all I have is 8 photos found online, and a series of photos of the old model in Auckland museum shot through glass, so not very good quality.

I started by drawing up the hull profile. I based this on the ST Cruiser with some alterations to the bow, stern and deck sheer. The Parahaki has a very large, single screw, steerable kort nozzle so the "cruiser' stern needed a bit of alteration.

Using the model photos for comparison, the 'Cruiser' deck wasn't too different so that only needed a few alterations too. I also added slots for the bulwark frames, really easy at this stage.

With the deck and the keel profile sorted out it was just a matter of figuring out the hull frames/ribs to make sure that the hull curves were as smooth as possible. Sounds good in theory!

The drawing took about 3 evenings on the Mac. The superstructure took about the same amount of time and takes quite a bit more intuitive thinking/guess work. I also figured out the heights and angles of all of the bulwark struts – much stronger this way, and simpler than trying to figure it out later.

I ganged up all of the hull components onto an 800 x 500mm sheet of 3.6mm ply, and the deck and superstructure pieces all onto a similar size sheet of 1mm birch ply.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 01, 2017, 17:25:05
Then I took the drawing files off to a laser cutting service and had both sheets cut out the following day. It may be cheating to use a laser but it's much more accurate than by hand and saves about 2 weeks work. Besides, I don't have a power saw capable of doing it.
: Re: 1960s Refinery Tug – Parahaki
: VANYA October 02, 2017, 01:30:41
Hi Steve,
Welcome back to NZ. 6 months away, bet you had a great time.

Another masterpiece in the making I see. They are both particularly inpressive and in the tradition of some of those classic British tugs from the 50/60's. Great stuff.

A long time ago I read in a report from the Northland Harbour Board that someone had built a 1/24th scale working model of the Parahiki. It was big as you can image at that scale.

I am coming up to Wellington on Friday. Might give you a call, have the wife though this time.

Hope to catch up.

Hayden
: Re: 1960s Refinery Tug – Parahaki
: Kiwinz October 02, 2017, 02:05:30
Looking at the hull of your new build the old AUCKLANDER came to mind..of course both built in the UK.

http://www.clydeships.co.uk/files/201303181915060.AUCKLANDER1958A.jpg

: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 02, 2017, 12:23:26
Hayden – At 1/24 it would be over 1.6m – what a beast. I'll be here on Friday so give me a call if you have any spare time. Still trying to get used to this cold weather after 6 months of summer. So cold the other day that the resin wouldn't cure!

Simon – It does look a bit alike. I'd like to make an 'Aucklander' but reference is just as hard to get as it was for the Parahaki.
The real thing is still moored in Wellington as a floating restaurant but it has been altered so much it is barely recognisable these days.
A sad end to a great old boat. I think that Russell Ward may have some plans in amongst all of his stuff. I'll have to see if he can dig anything up.
Steve
: Re: 1960s Refinery Tug – Parahaki
: Kiwinz October 02, 2017, 19:56:23
Yes not the best end to a tugboat being eaten up as a floating restaurant! Still some of her lovely old lines showing. Imagine if she got back to Auckland..a new venture for Russell W maybe..

https://www.stuff.co.nz/business/94428119

You better school Hayden up on CAD and laser cutters as I feel this is on the shopping list..maybe a 3D printer is not too far off either! It's been talked about here.

What was the situation with the OHAU cut outs? Still keen to work on that project too.

Simon
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 03, 2017, 13:44:38
Got the Ohau files sitting here all done. At 1m length it works out to an 85mm prop.
I'll get them cut out of 9mm ply and give them to Hayden this weekend as he said he was coming up.
I can get the deck done as well if I can get hold of some 2mm ply.
Steve
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 05, 2017, 12:37:18
OK, so it begins...

The laser cut pieces all appear OK. A quick scrub to remove any burn dust and they are all ready to go.
The keel section is in two pieces (so it could fit on an 800mm sheet) so they needed to be glued, and braced. I used some serious clamping and a good straight edge to keep everything in line.
Once that was set it was transferred to the trusty old construction jig. This holds the keel nice and straight while the rib frames are attached.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 05, 2017, 12:48:49
I've used this building method a few times and it certainly makes things quick and easy.
After an afternoon I had the rib/frames all in place and and securely braced. I had a hull warp at this stage a few years ago and it was a pain in the proverbial to fix so I'm paranoid about keeping everything straight and true.
Hence the oversized bracing blocks – they add strength and square things up.
This is a display only model so I can use as much interior bracing as I like.
The deck is crucial to the lining up of the frames. At this stage I use a square and a level at every step. An uneven deck is also a nightmare to fix – done that too – Doh!
: Re: 1960s Refinery Tug – Parahaki
: des October 05, 2017, 15:51:05
Hi Steve

I'm new at this hull-building stuff.  So can you explain what the Lego blocks are doing in the photos - I wouldn't have thought they'd have enough weight to be useful as alignment blocks.

Des.
: Re: 1960s Refinery Tug – Parahaki
: Kiwinz October 06, 2017, 02:12:58
More nice work Steve. Great boat building weather forecast this weekend..expect it finished by Monday! The return of LEGO blocks.

SB
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 06, 2017, 02:57:51
Very tidy work Steve , nice job matey.👍👍👍
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 06, 2017, 11:36:27
Thanks George – sorry I never made it to Bluewater. Family commitments every weekend while we were in the UK. I know where I would rather have been. Back next year hopefully, so I'll make sure I get some free Sundays.
Are you familiar with Brooke's of Lowestoft? Did all their boats look like this one?

Des – The Lego is glued onto the board and holds the keel in place and dead straight. I can easily lift the keel out and back in if I need to. I use them because: they are dead square, and we have a ton of them in cupboards around the house. When I'm planking the hull I clamp it deck side down to board again (on spacers). Seems to work for me. Did I mention I'm paranoid about getting a twist in the hull?

Simon – Yeah, a weekend of rain, and sanding in a confined space – bliss!
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 06, 2017, 12:41:58
Hi Steve Brooke’s built some nice tugs over the years,,but I think that this design was spot on, now thinking along the lines of a 1/24th one.
I like your new design how about a set of drawings for me?
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 07, 2017, 17:55:24
Sure thing George, I'll see how the hull turns out and then adjust the drawings as needed, and send them over.

Russell Ward (Aucklander on this forum) is the 'go to' guy for any information about tugs in NZ. He has a lot of stuff on his website www.tugboats.co.nz and much more that isn't on the site yet. He's currently rebuilding the site and hopefully it will get bigger and bigger.

This is what he remembers of the Parahaki:

Ralph Trimmer was chairman of the Northland Harbour Board in the ‘60s. The NHB fleet was called Trimmer's Navy.
He was quite far sighted and things moved fast under him although there was a feeling that he was not quite straight. In those times there were great moves up there. The oil refinery, potential for the new glass works –lots of coastal stuff.
He got the two big Brooke tugs and several smaller line handling tugs as well as a fabulous, though a bit fugly, pilot boat Manaia built out of wood and nothing but the very best by Percy Vos in Auckland. Sad that her designer Alex Collings didn’t have any sort of eye and she sort of missed out on what she could have been. Look her up. She is usually on Trade Me for sale quite cheap –a lot of boat for the money. I watched her being build and was invited to her launch in c1964. With all the teak and fine timber, the shop smelled like my uncles cigar boxes. Just a fabulous ship
Word went round that she was built as a maritime board room for the lads and questions were raised.
The maritime salvage that they all envisaged, never happened on the coast and the tugs never paid their way.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 07, 2017, 18:02:30
Made a bit of progress over the past few evenings. Attached the uppermost section of the hull. This is the only flat section on the hull. This is 2mm ply. It's Hoop Pine which is very flexible but also very poor quality (very coarse grain) but I'm on a budget with this build so I'm using any scraps and off-cuts at hand. Unfortunately I've still got about 1/4 of a sheet of the stuff left over.

Also made some good progress packing out the hull with balsa blocks to give the planking some backing and more surface area for the glue. These were sanded down to the approximate curves that the planking will follow. The complex curves in these areas are always the most difficult to plank.


: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 07, 2017, 18:07:10
Hi to the 11 guests reading this at the moment.
Why not register and join in? New members are always welcome – and the first drink is on the house.
Steve

Back to the build – It all looks a bit rough at the moment but it will eventually all be hidden by the planking – and a lot of filler and primer.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 07, 2017, 18:09:41
This all went together without any drama but managed to use about $30 worth of CA glue up to this stage. Planking will probably use as much again.

After a light sanding of the frames it was ready to lay the first plank. I'm using 2mm balsa strips. Started in this spot for no particular reason. I can glue, pin and clamp one plank on each side of the hull at the same time. It takes about 20 minutes curing time before it's safe to remove the clamps so the whole planking process will take about a week of evenings.

This model doesn't need to be water tight so my planking is a bit amateurish. Purists look away.
Hopefully the end will justify the means.
: Re: 1960s Refinery Tug – Parahaki
: VANYA October 08, 2017, 13:43:37
Hi Steve. Can you give me a call on 021 346 306 today.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 12, 2017, 23:15:26
Well that wasn't too painful. Only took about 4 afternoons and evenings.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 12, 2017, 23:17:45
As soon as the planking had gotten to halfway up the sides I gave the inside a good coating of resin, with a little matting, to strengthen the lower section of the hull.
When all of the planking was done I gave the exterior another coat to fill any gaps and to soak into the balsa and stiffen everything up.
It looks a bit rough at the moment but lets wait and see how it looks after a few sessions of fill/sand/seal.
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 13, 2017, 08:18:37
That is a very nice shaped hull Steve ,nice job so far.
: Re: 1960s Refinery Tug – Parahaki
: 2tugboats October 13, 2017, 08:29:30
An inspiration Steve. . .beautiful for sure.

Michael
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 15, 2017, 11:21:14
Thanks George and Michael,

The hull shape hasn't turned out as well as I imagined. I had based it on the 'Cruiser' hull lines and it is much fuller/blunter in the bow area than the museum model. The museum boat also has a very nice 'pot belly'. I hadn't realised how much of a flatter curve my hull had until I got some white paint on it. Unfortunately that's all I can see at the moment and I'm too far down the track to start again. Hopefully in a couple of months I will have forgotten all about it but at the moment I'm losing interest in it. I had a similar problem a few years ago when I built a couple of ATBs and the first hull had gotten to final paint stage before being binned.

I can adjust the drawings to compensate but I'm not sure if I can psyche myself up to start from scratch again.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 15, 2017, 11:23:03
This is after the third set of fill, sand and seal.

Each new coat of undercoat only shows up more flaws that need too be fixed and it I don't seem to be be making much progress. I know what you're thinking: don't put any more coats on.

I'm down to the 240 grit sand paper now so I guess that is a good sign. Hopefully the in next few days I get to the wet & dry.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 15, 2017, 11:24:31
A couple more of the godforsaken thing.
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 15, 2017, 11:56:54
That stern looks alovely shape to me, I think you have the bow a bit fine down on the forefoot that’s all.
Once you get some bulwarks on her the shape will look different again Steve, don’t give up matey.  Geo
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 15, 2017, 12:03:28
You think you have problems , this is my latest one all 53” x 15” beam of her double diagonal planking 5” kort.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 15, 2017, 12:47:32
Thanks George.
That's a bit modern for you isn't it? What is it?
: Re: 1960s Refinery Tug – Parahaki
: Kiwinz October 15, 2017, 15:23:41
How about piling on some bog/filler and doing a sculpting..nose job on her? Might not be the usual way you build but worth bringing it out to the shape you really want and saving what is yet another great little project. Like George says her aft end is very pleasing to the eye!

Hey if all turns to pot how about making lots of dust and running it over a belt sanding down to the water line..would make a great waterline diorama model too Steve!

With your excellent technology skills could you not redesign a new bow end section and cut it in to what you already have down aft?

Simon
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 15, 2017, 22:28:44
Hi Steve it’s just about in my time era 1972 built at Hong Kong Whampoa shipyard as Kau Lung, The Local firm J P Knight bought her home to the UK and named her Kendal.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 20, 2017, 17:29:59
George, I've taken your advice and started on the bulwarks. Hopefully when they are in place I won't be so fixated on the hull.
I'll make some adjustments to the bow and see how it looks.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 20, 2017, 17:32:33
The supports are slotted into pre-cut holes in the deck. This method is very fast and surprisingly strong.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 20, 2017, 17:33:59
The holes in the deck where the superstructure goes should make sense now.
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 20, 2017, 23:17:15
I like the look of that hull Steve you are doing well.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 25, 2017, 12:36:42
There comes a time in all of my builds when I manage to break off the rudder footing – and this is the time.

No matter how careful I am it usually gets knocked off at some stage. This particular model has a very long and thin footing/heel and has been asking for it from day one. I've had several close calls but finally managed to snap it off yesterday.

Luckily it's a relatively clean break. I won't fix it just yet, I'll try and finish the hull a bit more before trying to re-attach the pieces. Maybe I should stick to twin screws or tugs with skegs.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 25, 2017, 13:17:58
Thanks George, a few sessions with 60 grit paper and a bit of filler and the bow is looking much more acceptable. I can probably live with it now.

Looks like you and I are the only ones building anything at the moment. If it wasn't for your prolific output the poor old forum would be pretty quiet.

Following George's advice I added the bulwarks and the re-worked bow doesn't look so bad. Not as nice as Ted Stanforth's 1968 model but it'll do. Back in those days the harbour boards were much easier to deal with and they probably gave him a set of plans. In the 90s I was making a model of the Kupe, a local harbour tug, and the harbour board gave me their original plans – and a ride around the harbour with my 5 year old son steering the Kupe. Don't get that sort of access these days.

So – the bulwarks have been attached: 1.5mm ply – Birch for the flat sections and the dreaded Hoop Pine for the curved bow and stern sections.

As with most of my previous builds I initially make a pattern by wrapping a sheet of paper around the bulwark supports and marking the top and bottom lines with a pencil. This paper pattern gets transferred to a cardboard version and this is checked for a good fit on the model. After a bit of adjustment the cardboard pattern is used to cut the final ply bulwarks. I only worry about the fit to the deck – Always leave excess at the top and sand that down to the level of the supports. It's easier than it sounds. Must remember to get some photos of the process next time and save on some typing.

Anyway,  After a lot of sanding down they turned out OK and I added the fender strip (basswood & styrene) and the hawser holes ( styrene tubing) and anchor wells (styrene).
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 25, 2017, 13:19:39
Still plenty of work to do...
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 25, 2017, 13:20:40
Some of the remedial work on the bow.
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 25, 2017, 23:14:31
Looking really nice now Steve, a little faith in yourself and a tin of filler works wonders mate 😄😄😄😇😇😇😇😇😇😇😇.
Really nice clean work we don’t seem to get much on the forum at all nowadays, another forum that I watch is supposed to be model boats but you get all sorts of crap on it from health to motor bikes , perhaps that’s what people want rather than true to the Forum name.

Geo.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 25, 2017, 23:21:26
Thanks mate.
Although if this was a real boat I wouldn't go in it – shonky builder.
Still seem to be plenty of guests tuning in. Two looking at this at the moment. So there seems to be interest, maybe we've just struck a quiet period for building. Might kick off when the weather at your end packs up for the winter. Maybe some of the guest viewers would like to register and make some comments – I could do with a few tips.
Steve
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 29, 2017, 15:53:02
Now that all of the heavy duty work on the hull has been finished, I can start adding a few details: starting with the fairleads and fender housing.

The fairlead are basically a piece of styrene tubing with some styrene rivets around the outside. when sanded down and primed they will look fine.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 29, 2017, 15:59:47
The fender housing/brackets are strip styrene with styrene rod 'bolts'.
The fenders went on quite easily and the housing took less time than I had imagined.
Also added the grates (brass rod) in the freeing ports/scuppers and a panel running above them on the inside of the bulwarks to hide any messy glueing and the ends of the grate rods.
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 29, 2017, 23:26:55
Nice Steve 👍👍👍👍
: Re: 1960s Refinery Tug – Parahaki
: 2tugboats October 30, 2017, 07:26:28
Thank you Steve for your priceless sharing. Your work is a healthy portion of inspiration. I have found countless ideas for building one's tug from your pictures. For example, if I had know of your way of laying out port holes, I could have made mine that little bit more to look like a super clean job of it.

I have experienced, with building a large tug model, that being top heavy was my most huge mistake. Looking over your superior workmanship, I'm sure you will do fine in that consern.

Your contribution to the Forum here is huge and outstanding. There is a lull in the Forum participation of late and your sharing is what makes this place glow with tugboat spirit and hope for a person's build.

A pleasure to watch your building Steve, Michael
: Re: 1960s Refinery Tug – Parahaki
: VANYA October 30, 2017, 19:13:51
Hi Steve.

Have you got that webcam in yet?

I visited the patent slipway just down below your house when I was up in Wellington. It's a great spot.

Looking good!

There is a bit of scale activity at our model boat club so thinking the SeaTow 25 and barge might be needed. Will get out those frames.

I guess we can scale up the drawings to cut a bigger one too.Maybe Simon and I should hop in the Cessna and fly up for a hull drawing CAD tutorial with you.

Hayden

: Re: 1960s Refinery Tug – Parahaki
: tugnut October 30, 2017, 23:13:05
Hi Steve.very interesting build great job.
regards John b.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 31, 2017, 10:33:30
Thanks George, John and Michael.

Hayden – Hasn't been a ship in the slip for about 20 years but it had plenty of use in its day.
It looked pretty impressive with a big boat in there. In the 1960s the flying boat station was in the bay opposite, a ferry came to the head of the bay, and plenty of tug activity at the fuel depot on the other side of the bay so it would have been a very interesting spot. Only the fuel depot left now and the tugs are in and out in less than an hour. Although they always race each other back to town. Those Damens can get up a fair speed when needed – gives any little yachts a nice bow wave to deal with.

The Koranui drawing will scale up easily. My previous laser guy has moved to the Wairarapa and I'm using a new outfit in the Hutt. Much cheaper and they also have a big router. Simon's Ohau in 9mm poplar ply should be no problem on their laser. A bit slower on the router – and no 90Ί inner angles. I need to drop out a sample for them to experiment on.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 31, 2017, 10:40:37
Back at the bench things have been progressing well. I've repaired the snapped off skeg and attached the shaft support struts. This all went together better than I had imagined – I love it when that happens.
The keg now has a 2mm brass rod pinning it together and is pretty solid. The struts are a sandwich of styrene/brass strip,styrene. The aren't going anywhere – touchwood!
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 31, 2017, 10:52:36
The hull has now had about 8 sessions of fill/sand/seal and that's about as far as I'll go. I'm happy with the surface.
The stern curves look OK and I've come to terms with the reshaped bow. Not much more to add to the hull exterior other than the Kort nozzle, and that's 2 weeks away (hopefully).
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 31, 2017, 10:58:59
Nice !👍👍👍
: Re: 1960s Refinery Tug – Parahaki
: sea monkey October 31, 2017, 11:13:31
Final job was to attach the rolling chocks/bilge keels. These are styrene with brass pins through the hull.
I hate these things – they are asking to be snapped off. Luckily they don't sit anywhere near the cradle/stand.
The 240 grit sandpaper has now been replaced with 600 wet&dry, the hull's as smooth as a baby's bum and it's now ready for some paint. This is when things can go horribly wrong.
: Re: 1960s Refinery Tug – Parahaki
: model tugman October 31, 2017, 14:11:06
It is a lovely looking hull matey, twice the size and working would be awesome.
: Re: 1960s Refinery Tug – Parahaki
: VANYA October 31, 2017, 14:20:06
Steve.

I would be keen on a scaled up SeaTow tug, something around 30-36 inches. She is big displacement but has room for big motors.

Have a go if you like and we will get the whole lot down.

Your newbuild is looking fine.

H

: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 05, 2017, 13:44:28
Hayden – enlarging the Seatow to double the size you have takes it up to 1080mm LOA, which works out to 40mm prop size. We could gang it up with the Ohau on a full sheet of 9mm Poplar.
I'll get a cost for the ply and the laser cutting.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 05, 2017, 13:58:21
While I'm waiting for the Kort nozzle to arrive I made a start on the superstructure.

The laser cut parts slotted together fairly easily although the curves at the bow end put quite a strain on the ply. I probably should have cut those pieces at 90Ί to the grain of the ply. The Birch ply is not very flexible so it needed quite a bit of glue, internal bracing and some serious clamping to keep it all square and true.

Still at the early stages but you can get the idea.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 05, 2017, 14:02:57
At this stage I've also found another major error on my part. I had drawn up the plan for the deck and superstructure footprint from several photos I took at the Auckland Museum. That were taken from directly above the model and when drawing up the plans I hadn't taken into account the amount of distortion or fisheye that my camera gave the image. Subsequently when I measured the width of upper deck I got an incorrect measure. The whole superstructure is about 10mm too wide. It still fits but any deckhand would have to hold his breath when he tried to walk past the front of the superstructure. The gap to the bulwark is only 1m in scale. Better luck next time!
: Re: 1960s Refinery Tug – Parahaki
: model tugman November 05, 2017, 14:20:42
That looks a complicated structure Steve, very nice, but it is only 5mm too wide each side, there now that doesn’t sound so bad does it?  Geo.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 06, 2017, 21:16:19
Ha ha, if you put it like that, it's not much more than my usual margin of error – a mere gnat's.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 06, 2017, 21:24:14
Shapeways came through with the the goods very quickly. Eight days from placing the order, printed in New York to delivery in New Zealand. Not bad. Let's see if PPD Etching in Scotland can match that for the brass etched components.

Image No 1 shows the initial drawing with dimensions.

Image 2 is a screen shot from the 3D stl file

Hey presto! 8 days later.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 06, 2017, 21:30:50
I had this part printed in strong, white and flexible as Kort nozzles are easy to knock around.

It is surprisingly strong – the nozzle wall is only 1.5mm thick but this material does show the striations from the painting process.

Printing in finer detail material would have doubled the cost.

Hopefully a few coats of paint will flatten a few of those layers – it doesn't handle sanding too well. The last time I had something similar printed (some ASD units) the looked the same and didn't look too bad after throwing on some paint.
: Re: 1960s Refinery Tug – Parahaki
: VANYA November 07, 2017, 12:56:16
Steve.

Those nozzles are real tug bling! Nice they are.

I made some out of fibreglass resin then lathed them up.Also heavy gauge steel machined and silver soldered would be equally as nice for working models.

Looking good.

H
: Re: 1960s Refinery Tug – Parahaki
: mengam November 14, 2017, 09:43:43
Hello

Your Kort nozzle have a strange shape, it's normaly a cylinder inside, conical outside with a torus for the inlet and like a blade as trailing edge

Your conical nozzle as oulet is a typical counter intuive shape for a boat. It's possible for air propeller as compressible fluid but inapropriate for the not compressible water.

With your shape you decrease the bollard pull of your tug without any profit.

Around 2002 have seen this twice tugs at Noumιa New Caledonia, I have to search in my pictures (prior digital pics) I'm sure to have some details pics.

Mengam

 

   




: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 14, 2017, 12:29:20
I agree, it is an unusual shape.
As I don't have any plans or images of the boat out of water I am basing below the waterline on the model at Auckland Maritime Museum. Their model is pretty accurate and was made in the tug's home port a few years after it began working there. In those days the harbour boards were quite generous about sharing plans so I'm assuming that the model is correct.
These photos of the model are a bit blurry but you can see the rear tapering of the nozzle.
They could be wrong, maybe? The nozzle doesn't look like it would have much of a turning arc either.

Steve
: Re: 1960s Refinery Tug – Parahaki
: des November 14, 2017, 19:57:47
I was looking into the shape for a Kort nozzle, and found this - check it out

http://www.propellerpages.com/?c=nozzles (http://www.propellerpages.com/?c=nozzles)

I didn't realise until a couple of days ago that there are different nozzle shapes intended for tugs (which need to develop thrust both forward and in reverse) and for others such as trawlers, AHTS / PSVs etc (which primarily need most thrust forward).

There is also a newer design, the Rice nozzle, which delivers higher thrust and better fuel consumption than either Kort shape.

Des
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 15, 2017, 11:41:51
I'm pretty sure the shape of Parahaki's nozzle is right.
Mengam rightly points out that you can't compress water – although all Kort nozzles have a very slight taper that 'focuses' the flow into a 'directed' stream. The forward opening in always slightly wider than the rear. Often this is just in the 'wing' shape of the nozzle wall.

back at the bench – a bit of paint always helps...
I've added a skirting around the base to hide any gaps between the deck and the bulkheads. Still need to add a few more basic details such as a gutter strip around the edge of the upper decks and some trim around the top edges of the bridge. Then on to the fiddly bits.
No bridge details on this one – it would have all been guesswork and tinted glazing will make any interior details redundant.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 15, 2017, 11:42:37
And, yes, to any eagle eyed viewers. The rear 4 port holes on the port side don't have surrounds – they will be covered by hatches.
: Re: 1960s Refinery Tug – Parahaki
: model tugman November 15, 2017, 23:54:08
Lovely work matey , looking good.
: Re: 1960s Refinery Tug – Parahaki
: VANYA November 16, 2017, 01:26:08
Steve.

You really need to build the Aorangi. 

It would be most impressive and after seeing the details you build into the models it would look brilliant. Only you can do it this well and at this scale.

She is 86 feet long.

Hayden
: Re: 1960s Refinery Tug – Parahaki
: mengam November 17, 2017, 05:31:41
Hello

The outside shape of this nozzle is up to the model, maybe correct maybe not, this conical section only at the end maybe for structural or industrial reason ...

Anyway for the inside shape it's hundred percent not correct.

It's a fault for a marine engineer to built a nozzle with smaller diameter at the outlet than at the propeller place

With an outside like this, the interior shoud be like that

(http://nsa39.casimages.com/img/2017/11/17/171117015339129764.jpg) (http://www.casimages.com/i/171117015339129764.jpg.html)

Then as the propeller must be at the nozzle rotation axis - you will have a problem with the leading edge of the inside rudder during rotation of the nozzle up to the regular max at 35°

As promised : the two sisters at Noumιa in 2004 

(http://nsa39.casimages.com/img/2017/11/17/171117022602298298.jpg) (http://www.casimages.com/i/171117022602298298.jpg.html)

(http://nsa39.casimages.com/img/2017/11/17/171117022602490924.jpg) (http://www.casimages.com/i/171117022602490924.jpg.html)

(http://nsa39.casimages.com/img/2017/11/17/171117022602738293.jpg) (http://www.casimages.com/i/171117022602738293.jpg.html)

It's a pity as most of the time I also take detail pictures of the aft deck (like spy in relation with my job ...)  but that time as they looked more like bohemians traveling with trailers on the deck I didn't !

Mengam



 
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 20, 2017, 14:17:24
Thanks Mengam. Great shots, were you working in Polynesia? Looks like the tugs are doing general cargo work as well.
As this is a display only model I'll leave the nozzle as it is. If you don't tell, I won't either.

Made a little progress over the past week. I now have all of the components needed for the hull ͺ the last bit being the Kort Nozzle) so I assembled everything and got some paint onto the hull. I'm a bit of a stickler when it comes to colour and the deck and inboard bulwarks went through several coats before I was satisfied with the final colour.

Both colours as shown in most of my reference are in post NHB use, and are slightly different from the Harbour Board colours.
After the boats left NZ the superstructure was repainted in a sort of International Buff and the decks in dark red. In Whangarei the superstructure was more of a 'Caterpillar' yellow and the decks a dirty, dark orange. I'm using the Museum model as reference for my colours.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 20, 2017, 14:20:39
Some more...
The stand is not for this model, I used one from another model just for the photos.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 20, 2017, 14:23:19
I know the shaft should be painted but I quite like the raw brass – I can leave that decision until later.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 20, 2017, 14:25:01
Last ones!
: Re: 1960s Refinery Tug – Parahaki
: model tugman November 21, 2017, 00:32:46
She is looking really good now Steve. Lovely job ,and a good looking hull matey.
: Re: 1960s Refinery Tug – Parahaki
: Kiwinz November 22, 2017, 01:32:59
That's 4 yeses from me !!!!
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 24, 2017, 11:39:30
Thanks Simon, George.

Hayden – the Aorangi would be a great subject. I've got the Te Maru on my list so you'll have to do the Aorangi. It would look much better up at about 1m and in the water than at 1/50 on my shelf.

The postman has been busy at my place over the past few days, delivering paint, materials and best of all, the etched brass. The poor old dog has just about barked herself senseless with all his comings and goings. I feel for the Postie, every dog in the street goes mental when he turns up.

Anyway, here are a few shots of the brass. There are a few bits in there for the next project as well, and I usually double up on most parts so the sheet contains a lot more bits than I'll eventually use.

Eight days from placing the order in Scotland to delivery in NZ – that's pretty good service. And the quality is excellent, as always.
: Re: 1960s Refinery Tug – Parahaki
: VANYA November 25, 2017, 20:34:15
I'm darn sure I can just make out a piece that fits on the Aorangi in those brass etchings. You have done it before Steve, teasing us. 

I need to scan those photos for your archive anyway then we can store them in "the cloud" for a rainy day :-)

The lastest copy of Workboat magazine has an article on Kiwi built tugs. Just had to buy it.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 26, 2017, 18:49:17
You'll be doing pretty well to figure out the next one from that sheet. It's a pretty obscure tug next time round. From the North island but not a port as we know it now.

In the meantime...

Once I was happy with the deck orange and the chrome yellow/ochre I gave the superstructure a good blast.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 26, 2017, 18:53:30
The little guttering lips around the edge of the decks proved to be a nightmare. I must have knocked them off about 10 times. Still a few cracks to repair but getting there.

The black panels are where the engine room vents go. That are not in the same position port and starboard.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 26, 2017, 18:59:53
Other than the funnel and the fire fighting tower, all of the bulky items have been completed.

The fire tower is quite complex but I can break it down into a series of components (mast, platform, pylons, monitors, lights) that will stop the whole thing from seeming too daunting. I hate making the lights most of all. If I wasn't so stubborn I'd probably just buy them.

Everything from now is fiddly and detailed. Pass me my glasses.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 29, 2017, 11:35:12
I got started on the funnel and it all went together pretty smoothly.

Used the laser cut framework as a base to keep everything square and true.

Then packed it out with some balsa off-cuts, and sanded it down to the level of the frame – simple.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 29, 2017, 11:41:38
I probably could have filled and painted it at this stage but I planned to skin it with 0.2mm styrene.

I wrapped a sheet of paper around the funnel to make a paper pattern for the styrene – leaving plenty of excess to be sanded down after glueing.

The tricky bit is to try and get the surface as smooth as possible. Styrene that thin shows up every air bubble or ripple of glue. I guess I could have used 2 layers but I was running low on styrene so had to economise.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 29, 2017, 11:47:32
All went together without too many hiccups. I only had to fill a few flat spots and sand a couple of high points.

The top lip/rim is taller than on the real boat. At scale size it looked too insignificant, so executive decision time and it is now more prominent.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey November 29, 2017, 11:50:28
And – voila!

Still needs a hand rail, flag pole, a couple of vent pipes and some life buoys.
: Re: 1960s Refinery Tug – Parahaki
: model tugman November 29, 2017, 12:25:43
Blooming lovely Steve a really nice job, well done, oh and yes another week or so and the bar will appear HeHe.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 06, 2017, 15:44:16
Make sure you post a pic of the bar on opening night, George – and hide any power tools!

The funnel came together pretty easily so I launched straight into the firefighting platform. At first glance it looks complex but it's just like eating an elephant – one bite at a time.

The first part was simple: assemble the platform from my laser cut components. Easy!

: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 06, 2017, 15:45:59
The frame sides and ends fan out slightly. Skinning it with very thin styrene formed the curves. They turned out OK and the lip around the bottom wasn't as tricky as I had thought. The inner curves on this were done with 240 grit sand paper, very, very gently, so as not to tear or crease the thin plastic.

The PE grating drops in OK, with only a little filing around the curve. It fits more by good luck than good management.

Hopefully the railings slot in as easily. Fingers crossed.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 06, 2017, 15:47:32
So far, so good!

The next step was to make the main support pylon and the forward 'A' frame.

The pylon has slightly curved sides and flat from and rear ends. The base was made out of basswood, with a ply spacer on each side for the styrene skin to wrap around to form the curve. Simple enough but the end result is very subtle and not many would spot it. At least I'll know it's there.

The 'A' frame legs also have a similar slight curve on their lower sections and then flatten out about have way up. They are flat on the inner sides. The inner sides are shaped to fit around the platform skirt. These are also basswood covered in styrene.

It is a bit flimsy at the moment but hopefully the whole thing will be a bit more robust when it's all glued together.
: Re: 1960s Refinery Tug – Parahaki
: model tugman December 07, 2017, 00:03:03
Nice one matey 👍👍👍👍.
The workshop / bar will be tackled this weekend hopefully,but I feel boredom creeping around the corner already😜😜😜😜😜
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 07, 2017, 12:08:53
You know what they say about you know who making work for idle hands – especially when alcohol is involved.
Better start planning your next project.
: Re: 1960s Refinery Tug – Parahaki
: model tugman December 08, 2017, 01:26:50
Oh I have started another already matey.I bough an Assurance class tug kit unstarted from E bay for half price,
So as Inalready have one built as per the kit , I looked for something different and found one that had been converted to Diesel power and ended up towing log barges in BC Canada.
She was called Hermes, Rivtow Viking and Canadian Viking
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 08, 2017, 11:37:49
What a beauty, right up your street as well. It will be a happy holiday season.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 08, 2017, 11:42:11
Got all of the major bits for the firefighting platform sorted out and assembled, with a base coat of paint.
As hoped, the thing is pretty solid now. Only a few blemishes to fill or sand and then some details to add.

The colour took a few trials. In the 1960s, when I was about 5 or 6 my dad had a windfall and was able to take us on our first family holiday. We took the overnight car ferry to the South Island and it was my first trip on a boat. I don't remember much about it other than a few memories prompted by a couple of photos of us onboard. In all of the photos the deck equipment is painted in a pale caramel colour. That is the colour that I tried to replicate. It's a real 1960's colour and very similar to the one used on the NHB version of the Parahaki.

This coat turned out to be a little on the yellow side. They all look different in the tin!
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 08, 2017, 12:15:59
Inbetween dithering around with paint colours I actually did something useful – I soldered up the platform railings.

The stanchions and grating are from the sheet of PE brass I had made. When I drew them up I left tabs on the base of the stanchions and holes for them spaced around the grating. The stanchions have recessed top for the top rail (0.5mm) and smaller holes for the other rails (0.25mm). It means a little pre-planning when drawing up the PE components but saves time and hassles in the long run.

This railing was a fairly simple shape so the makeshift soldering jig didn't need to be too complicated. The curved ends of the railing just happened to wrap around a Humbrol paint tin.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 09, 2017, 23:20:33
Added a few bits of detail to the platform: monitor piping, wiring conduit/ducting, ladder rungs, light trays, radar deck, etc.

The ladder rungs took a surprisingly lot of time to finish for something so simple, and the railing around the radar platform ifs the thinnest brass rod I could find. It was a nightmare soldering it. My soldering iron was way too powerful . I did manage to cook it during the process so I've replaced it with a smaller 25W version – more than adequate for this type of stuff.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 09, 2017, 23:21:43
Cleaned up the railings and painted them. And made the mast. No lights, radar or monitors yet.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 09, 2017, 23:23:22
I'm happy with the colours – at last – and now only need to glue everything together.

The whole firefighting platform/mast came together more easily than I had imagined. You just get lucky sometimes.
: Re: 1960s Refinery Tug – Parahaki
: model tugman December 10, 2017, 02:35:09
It’s not lucky mate it’s a skill that you have,👍👍👍
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 11, 2017, 12:23:49
I've assembled all of the components for the mast and firefighting platform. It's pretty much completed, the mast isn't glued on at the correct angle yet. I'll leave that until the model is finished. Too easy to accidentally knock it off.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 11, 2017, 12:25:02
Colours are all good and everything fits together just right. It all looks OK.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 11, 2017, 12:33:35
EXCEPT – it's all wrong! Spoke too soon, George.

Those of you who have been paying attention from the beginning of this build (unlike me) will have spotted my rookie error.

This boat only has 2 rails on all of its railings – Arrrgh!

In my defence:
1. I can usually count up to 2.
2. What sort of boat only has 2 rails? You'd have to be a very fat crewman to not slip between 2 rails. Was the yard trying to save money on rails? Did the naval architect have problems also telling the difference between 2 and 3?
3. I'm a man, I never read the instructions.

All of my previous models have had 3 rails (as do 99.99% of real tugs) and I just assumed this one was the same. You know what they say about assumptions – make an *bottom* of you and me!

'Easily fixed' you say. 'Just remake the railings on the platform'.

Well, no, as the platform railings had gone together so well I rushed into making up the railings and had soldered up the whole boat load. Using up all of my PE stanchions and $40 worth of brass rod in the process. Some of the sections are quite complex and it took about 12 hours to make them and clean them up for painting.

In theory, I could de-solder everything, spend hours filing and cleaning the stanchions, re-drill them and start again. However there is a strong CBA factor (can't be arsed). I'm bitterly disappointed, but not enough to start again. I can probably live with it. If you don't tell, I won't either.

I'm have time out at the moment, a couple of beers in the sun and a few hours away from the bench while I calm down.

What sort of boat only has 2 rails?
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 22, 2017, 18:06:03
I have this build on the RCGroups forum and one of the members there contacted me and said he had some GAs and photos of the Parahaki. Those things are like gold.

The parcel of reference material arrived arrived today. It contained a set of GAs, some equipment specs and some photos that I hadn't seen before. All really useful stuff, especially the GA and some of the photos. The equipment list gives the make and model of the tow hook and fire monitors (SeeBeck and Merryweather), so now I can try and find some photo reference of them.

The good news is that my hull lines aren't too dissimilar to the GA.

The specs mention that the tugs were able to stay motoring at sea for 50 days or 6,500 nautical miles. Cruising speed was 13 knots. That's pretty good going. They had a crew of up to 14.

One photo shows an emergency steering position on the rear, port side of the boat deck – that is something that is missing from the museum model, and my original photos didn't show that aspect of the boat. Guess it means I'll need to make another wheel, binnacle and telegraph.

They also show that the boats were originally painted with the Whangarei Harbour Board logo not the Northland Harbour Board as in my later photos.
I'll stick with NHB.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 22, 2017, 18:08:32
The photos are all from a local Whangarei monthly magazine. In those days the magazines would do pictorial features on important local events. They are hard to find now but often contain some great reference.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 22, 2017, 18:10:33
One unexpected thing that the photos highlight is just how different things looked in 1967, it was only 50 years ago but it looks a lot more than that. Have things changed that much?

For example:
Just how much of a big deal the arrival of 2 new tugs was to a small provincial town.
The Austin Cambridge was always a boring looking car. That number plate makes it brand new at the time but it still looks like an old lady's car.
The tug's engineer is wearing a tie under his overalls – you don't see that these days.
The tug captains have very military style uniforms. The older guy is taking his uniform very seriously and is wearing his campaign ribbons.
The younger captain has a much more relaxed looking outfit with a lot less brass.
The bridge has a speaking tube just above the wheel – what was that all about?
: Re: 1960s Refinery Tug – Parahaki
: model tugman December 23, 2017, 00:42:43
Nice old pictures there Steve, we used to call the Cambridge a vicars car,
I still think the build is brilliant keep up the good work mate, and have have another beer. All the best GEORGE.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 23, 2017, 19:18:50
Thanks George.
And now a question for you, mate:
In the photos below, the tugs have 2 tow hooks. Is this a thing? Do some boats have 2?
These boats were built as rescue tugs so would they need 2 separate tow lines sometimes?
The GA is very basic and only shows one.
: Re: 1960s Refinery Tug – Parahaki
: model tugman December 24, 2017, 00:29:18
A very common thing on most tugs, in fact some of the Thames tugs had 3 ,  2 on the casing as yours and one at the back of the engine room casing and Placed lower for barge work.
Once the more powerful tugs came along and the larger spring hooks and self release hooks came along the two Liverpool or round type hooks dissapeared.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 24, 2017, 14:25:33
Thanks George, two it is then. I'd better get cracking.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 27, 2017, 14:30:18
After a record breaking start to summer, the cold weather over the break has meant that I've been able to get a few solid hours in at the bench. Bliss!

All of the major pieces of the build have been completed and now it's lots and lots of fiddly little bits.
I knocked off all of the railings in one go – a record for me. Some of the sections are quite complex and I'm pretty happy with how they turned out.
There is something very satisfying about soldering. Brass is such a good material to work with.
All of the sections are now ready for a coat of primer/undercoat and then a satin topcoat.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 27, 2017, 14:47:19
Next job was the tow hooks – two in this case. All of my previous models have been harbour tugs so I hadn't come across a tug with multiple hooks before.
This tug was designed as deep sea rescue tug so it had a few more tricks in its bag: greater range, better towing power, and two tow hooks.

First task was to make the tow hook base arc. This was formed by glueing layers of 0.7mm styrene around an paint pot with the correct diameter. Easier than it seems, and it holds its shape.

The actual hooks were carved out of styrene, and then the mechanism was built up from styrene and brass. The spring is some very malleable brass wire that I have had lying in a drawer for about 20 years. It's too flexible for railings but perfect for  this sort of stuff. I've never seen anything like it since. I have a coil of about 4 metres of it so I'll probably never run out.

The tow hooks are about 30mm long, or 1+1/4 inches in the old money.

While I was on a role I also made up a couple of capstans. These are quite large ,powerful ones. Once again, a combination of styrene and basswood. Styrene tubing doesn't come in diameters large enough for these so the thicker, lower sections have several layers of styrene wrapped around them to bulk them up by another 6mm in total..
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 27, 2017, 14:55:44
Also sorted out the crane and ship's boat. The tarpaulin on the dinghy still need to have the clips added. Needs undercoating first.

Had to make up two each of the emergency steering gear. Two wheels and two telegraphs, only one binnacle. usually this gear was covered with a tarp but the wheel and telegraph on the rear boat deck looks good in an usual way – so in this instance they are all uncovered.

The spindle isn't completed yet.
: Re: 1960s Refinery Tug – Parahaki
: model tugman December 28, 2017, 00:30:55
Lovely work matey, those tow hooks and capstans look great.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 29, 2017, 12:21:51
Thanks George, looks like you and me are the only ones on here at the moment. Hopefully a few more members will return after the festivities.

I've been beavering away steadily and have amassed a couple of boxes of bits. The more I make the more I seem to need.
I don't even know if this tug had anchor chain stoppers but I decided that it would have so I spent a couple of hours making two little riding chocks. Too much time on my hands at this time of year.

This photo shows the box of paint ready railings (lower left), a box of bits ready for a topcoat (top left), a box of bits ready for undercoat and finishing touches (top left), and a box of fully completed pieces ready to glue in place. These bits are severely outnumbered at the moment.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 29, 2017, 12:24:18
So far so good...

And still a few more little tricky things to make: life ring brackets, lights (ugh), glazing (always fraught with potential disaster), and fire monitors and hydrants.
: Re: 1960s Refinery Tug – Parahaki
: des December 29, 2017, 13:28:28
Hi Steve

Clearly you've built the wheelhouse and superstructure without glazing, prior to painting.  Now you are talking about glazing.  How did you build the wheelhouse so that you could still get your fingers inside to fit the glazing?

http://modeltugforum.com/index.php?action=dlattach;topic=6333.0;attach=101620;image

On my models I build the wheelhouse initially sans roof, then paint (interior and exterior), then make and fit windows, and lastly fit the roof.  But this entails having to fill and flush the joint between the roof and sides of the wheelhouse, and then a brush touch-up to the paint.  Also, the sides lack support, and can flex at joints, which sometimes requires joint repair and more paint touch-up.  I figure there's got to be a better way.

Des

: Re: 1960s Refinery Tug – Parahaki
: sea monkey December 31, 2017, 13:14:16
Hi Des,
Usually I do the windows the same way as you describe. Sometimes through the roof or if the cabin is small enough, through the doors.
This time the cabin area is quite large and both doors are at the rear so that rules out the door method. Because of the curved bulkheads the roof is holding the whole thing together so that had to be glued in place at the beginning. Luckily for me the window frames and glass on this particular boat sit proud of the bulkhead. So when I had the brass photo etched I recessed the back of the window frames to hold the 'glass'. As these frame edges are quite (1.5mm) wide I have about 0.7mm recess all around to hold the 'glass'.
Sounds good in theory.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 03, 2018, 12:37:55
With any build there always seems to be an order that things need to be done in. Even more so when it comes to assembling everything at this stage of the project.

I decided to finish the bow equipment first as this area is quite small and will be inaccessible when the superstructure is in place. Step one was to make up an anchor windlass from bits and pieces from my spare parts box, and some chain stoppers from styrene. Once again, no reference but this one is based on a pretty generic 1960s windlass. Turned out OK. Took a bit longer than planned but looks the part.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 03, 2018, 12:40:42
The deck hatch is styrene on a basswood base, I managed to find some very old teak strips deep in my spare wood stash which worked out well for the covers.

The dinghy is almost finished. The cradle is ready and painted, still need to add the tarp clips.

Everything looks better with a coat of paint.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 14, 2018, 22:36:13
The basic carcass of the superstructure is all finished and painted, and now I can start attaching all of the pieces from my boxes of bits.

I need to start with the items that will be difficult to get to when everything is in place. The order of assembly isn't always as straightforward as you'd think.

Firstly, the doors in the recessed entry ways can be glued in, then the main deck grab rail (the porthole hatches on the port side needed to align to this), then the companionways, then the funnel,then the fan room vents, etc, etc. As usual there are a few minor paint touch ups and hiccups to fix. Nothing too major this time round – touch wood! The rain awnings above all off the flush mounted doors are very delicate and I'll need to be very careful of them because they all seem to be in places where it's very convenient to hold onto when picking up the superstructure.

The funnel grab rail and logo needed to go on at this stage as they’ll be hard to get at when the boat deck railings go in. The rubdown decal on the funnel has to go on now as I won't be able to get in there later. These are very delicate so I'll have to be careful not to scratch them, get any tape or turps on them. I have a couple of spares but lining them up later on will be tricky. Added the vent pipes to the funnel for the same reason.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 14, 2018, 22:41:15
The funnel grab rail and logo needed to go on at this stage as they’ll be hard to get at when the boat deck railings go in. The rubdown decal on the funnel has to go on now as I won't be able to get in there later. These are very delicate so I'll have to be careful not to scratch them, get any tape or turps on them. I have a couple of spares but lining them up later on will be tricky. Added the vent pipes to the funnel for the same reason.

Next step was dependent on the rear bridge windows and doors being glazed before anything else could go ahead. This went easily enough but has ended in tears before, on more than one occasion. Once the windows were in then the railings and steps in that area could go in.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 14, 2018, 22:44:53
The bridge/wheelhouse interior was painted dark grey (no interior details on this one) and the flying bridge railings attached.

So far, so good but my box of bits isn't getting much smaller – I keep finding things that I've forgotten to make.

And the stripe on the funnel is straight – it just looks wonky because of the lens on my phone.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 14, 2018, 22:47:21
Getting the dreaded 'failed security clearance' window for some of the images.Totally random.
This is a real problem for the site and I fear that it may be discouraging some people from posting.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 20, 2018, 12:12:49
Slowly but steadily making progress over the past few days. I tidied up the railings and started attaching them – working from top to bottom, innermost to outerside.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 20, 2018, 12:14:02
Adding any little items that will be tricky to get to or attach at a later stage so the fan room vents and aft loudspeaker go on now. I have to do most of these bits holding my breath because a stuff up at this stage is usually a very difficult repair job.

: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 20, 2018, 12:15:18
Last one for today.

Next step is glazing the bridge windows and adding the pinstripes. I'll need a steady hand for that.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 23, 2018, 13:08:03
For the next stage of construction I had to glaze the bridge/wheelhouse windows, and break with my traditional build process and add the tug's name and pinstripes. I usually add the name as the very final task – sort of a sign off. The rub down transfers are notoriously delicate and can be damaged very easily so I leave them until I'm not needing to pick up the boat by any unusual places and scratch them off.

The glazing went pretty smoothly. I had recessed the back of the frames so that the clear panes just dropped in. The frames were then glued in place and hey presto! – done. Too easy.

The pin striping was another story.

As the rubdowns are so fragile I always get several spares made up on each sheet. For this model I had 4 sets of triple stripes i.e. 3 sets of spares for each side. The front and port side went on no problem but I used all of the spares to get the starboard side right. I was sweating towards the end as the rubdowns are quite expensive and take a couple of weeks to get here. I sure didn't want to have to re-order. Also, I'm almost over this build – I want it finished. The end is in sight but I keep finding things that need to be made. Not looking forward to the fire monitors, and the nav lights are always a chore.

And no, the name plate is not parallel with the pinstripes. It is parallel with the windows and bridge deck. The pinstripes follow the line of the bulwarks – sort of.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 23, 2018, 13:09:16
Still – as soon as I get this one finished I can start on the next.

The tow hook table equipment is just about finished too, only needs some wiring conduit for the capstan control boxes.
: Re: 1960s Refinery Tug – Parahaki
: model tugman January 23, 2018, 23:24:16
She is a cracking job Steve brilliant work.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 24, 2018, 14:53:19
Thanks George,
She's not exactly beautiful, or even classic diesel lines but it is striking. It's growing on me – very slowly.
The straining forward bridge, that frown, the eyebrows? The NHB logo and pinstripes look like a cat's nose and whiskers.
I'm not sure if this look was Brookes 'style' or if this was a one-off. Northland Harbour Board ordered 2 more harbour tugs from Brookes two years after delivery of Parahaki and Haumanga, and they are quite different – much more late '60s looking.
: Re: 1960s Refinery Tug – Parahaki
: model tugman January 25, 2018, 00:13:46
Hmmmm, they weren’t the prettiest either .
: Re: 1960s Refinery Tug – Parahaki
: VANYA January 25, 2018, 02:42:06
Steve.

I see a bit of Kupe, Toia and Daldy etc in that Waitangi. Some years later.

Hayden
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 25, 2018, 11:53:01
Hey Hayden, how was the break? Looks like you've had a few scorchers recently.

Yeah, you can see how the Waitangi design morphed into the Kupe. Maybe Marine Steel in Whangarei got Brookes to design the Kupe for them. Going to Voith drives was a step forward too.

You're dead right George – none of them are oil paintings. The Kupe class which followed on from them was quite popular around NZ for the next 10-15 years. I think that they had pretty nice lines. I might be a bit biased as Kupe and sisters Toia, and Ngahoe were my town's tugs for many years. I grew up seeing them every day. I've probably mentioned this before but while getting reference for a model of the Kupe, the harbour board gave me a ride around the harbour in it and let my 5 year old son steer it around, so I have good memories of the old Kupe.

It's still working 50 years later, now in New Plymouth. The photo with all the flags is her last day in Wellington.
: Re: 1960s Refinery Tug – Parahaki
: VANYA January 27, 2018, 15:12:04
Hi Steve.

Good Xmas break. At Nelson for Model Engineers Convention. Even took a model boat myself and glad I did as the pond was spectacular having been cleaned a week before the event.

Great summer here and very warm so maybe mid 30's and could be into 40's next week they say.

Great tugs those Wellington red boats. Guess every country has its iconic tugs, Dutch with Smit Rotterdam, USA with classic Morans and I suppose the SUN XXI.

Those Wellington Voith tugs were pretty heroic in there own right owing to weather and there long history around Wellington.

I never knew about those other NHB tugs. Ever thought about compling a "Tugs of New Zealand Book"??Our old pilot Boat the "OHAU" is headed to Northland and the Hokianga Harbour I am told. Looks like a tug and barge Company near Helensville is the operator. Had a few hitches heading north with fuel filters and bad water as she has ben in Pauanui for the last three weeks.

Happy building Steve. Time for another swim in the pool to cool off:-)

HB
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 28, 2018, 12:39:20
I think Russell has pretty much done that 'book'. He has relaunched his tugboats.co.nz site and is updating it as he goes. He's a mine of information and hopefully he'll transfer it all onto the site.

Yes, you can see the Kupe lines in a lot of tugs from the '60s: Whangarei, Auckland, New Plymouth, Wellington, Bluff and even Aorangi. Now they are all either Damen 2411 or Robert Allen. Whangarei is still making pretty good tugs, PT May and PT Mary but it seems ports just want them off the shelf these days.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 28, 2018, 12:40:39
Yeah, I'll bet Ohau had a 'mechanical issue'. Three weeks in Papanui at this time of year!! It's the best place in the world to break down. Normally it's so packed with holiday makers you wouldn't be able to get a berth or anchorage. Wonder how long they can stretch out the 'repairs'.
: Re: 1960s Refinery Tug – Parahaki
: VANYA January 29, 2018, 01:35:47
Pitty when they built the P.T Mary they forgot to tick the box to include the stand!! . Isn't that the golden rule of models, build the stand first.:-)  Ha ha!!
: Re: 1960s Refinery Tug – Parahaki
: VANYA January 29, 2018, 01:37:01
I better talk to Russell and see what new stuff he has.

HB
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 29, 2018, 20:32:53
Been very hot here lately so not too much progress – unless you count swimming and sitting in the shade.

I did get started on the fire fighting gear: 2 hydrants and 3 monitors.

The hydrants were pretty simple – all styrene tubing with some etched brass handles. There are positioned ,port and starboard, under a canvas awning so you can't really see them in too much detail. Not really sure why the awnings are there, maybe to protect the hydrants? Don't know.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 29, 2018, 20:36:39
The awnings came out OK. The clips are done in the same way as the ship's boat tarpaulin clips.

As you can see – the boat and crane are also finished.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 29, 2018, 20:38:28
Quite happy with the way the boat/crane turned out.

I've made it as it appears in my reference photos but it does raise a question: how do they lift the boat back out of the water? There are no hooks or lifting points on the boat and it would be very tricky trying to position ropes under it while it was in the water.

I'm betting that there are a couple of hooks under the tarp.

Not too much left to do now.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 29, 2018, 20:40:20
... a few more
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 29, 2018, 20:46:57
and – the fire monitors:

Usually when I have to make several of the same item they are placed on opposite side of the model so you can't see any variations or errors. These are right next to each other so I had to get them all as identical as possible. Having them at slight angles helps.

And, yes, they are all lined up and at 90Ί to the platform. My phone makes them look a little out of alignment.

Only the nav lights left to do now. Yahoo!
: Re: 1960s Refinery Tug – Parahaki
: model tugman January 31, 2018, 00:21:40
What can I say , blooming brilliant job Steve.a lovely Model, now make her bigger and with some power.
: Re: 1960s Refinery Tug – Parahaki
: Kev30 January 31, 2018, 07:22:42
I agree with George Steve a really nice job you've made there, I'll be looking out for your next project.

Regards
Kevin
: Re: 1960s Refinery Tug – Parahaki
: sea monkey January 31, 2018, 11:05:12
Thanks Kevin, got everything ready for the next one but I need to finish of the little Hikurangi in the meantime. it's 95% finished but has been languishing in a cupboard for 12 months.

Thanks George, I'll send you the plans and you can knock out a bigger, working one – probably only take you a few weeks.
: Re: 1960s Refinery Tug – Parahaki
: model tugman January 31, 2018, 13:03:00
Yes please , I can put it on my to do list, I am running out of decent subjects.  Geo
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:16:15
Yahoo! Finally finished.

I spent the last week adding the final bits and pieces and took a couple of days trying to make a 'glass' dome for the compass in the binnacle.
I tried filing one out of clear styrene, casting one with crystal resin, small drops of all types of glues, you name it, I tried it. Nothing looked right.
Eventually I tried dipping a piece of clear acrylic rod into the crystal resin and hung it upside-down to cure. The resin formed a drip on the end of the rod that looked like a glass dome. It's only 3mm diameter and is very hard to see in the binnacle. You'll need eyes like and eagle to spot it but I know it's there, so that's all that counts.

So... here's the finished thing.
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:19:29
a few more...
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:20:40
bear with me...
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:22:02
...the hits keep coming...
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:23:30
is there no end to this torment...
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:25:39
only a few more...
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 12, 2018, 16:27:35
That's all folks.
Thanks for following.
: Re: 1960s Refinery Tug – Parahaki
: model tugman February 12, 2018, 23:35:11
A blooming marvellous job Steve well done,really museum standard work there matey.👍👍👍👍👍👍.
It’s just a shame it’s not bigger and working.😇😇😇😇😇😇😇.
Geo.
: Re: 1960s Refinery Tug – Parahaki
: VANYA February 13, 2018, 03:20:03
Well George, funny you should say that because while Steve was building his miniature an old working model of this class of tug from the Northland Harbour Board did appear on our equivalent of Ebay here in New Zealand.

It was 1.8m long and while being a little tattey would have been a good buy.

Strange how thing happen.

A masterpiece Steve.

Hayden
: Re: 1960s Refinery Tug – Parahaki
: VANYA February 14, 2018, 00:31:59
Steve.

What is next? Te Maru, Aorangi?

How about a paddle tug? I have a copy and photos of the original Timaru Harbour Tug Titian from 1886. You are good at interpreting drawings and photos.

Another holiday?

HB
: Re: 1960s Refinery Tug – Parahaki
: sea monkey February 14, 2018, 11:01:51
Hi Hayden,

All of those sound great. Te Maru is definitely on the list. You'll have to do an Aorangi – it needs to be big, and working.
Aoraki is a good looking boat as well. All Timaru's tugs would be good models.

The Titan must be the same Titan that was in Lyttelton for a while. I've only seen 2 photos of that but it is very interesting. Not too many paddle tugs worked in NZ. Lioness in Greymouth, Titan?? Did Timaru get Titan first or from Christchurch?

If you email me what you have on Te Maru and Titan I'll see what sort of plans I can make from your files. I could cut the frames for your Aorangi at the same time – he he.

But first I need to finish off the little Hikurangi. It has been sitting in a cupboard for 12 months, 95% finished. Shouldn't take too long before I can get on to the next one. I have all of the laser cut parts for the Tika (out of Auckland) or the Kumea (Wanganui), another great little tug from Russel's site. Can't decide which one first, might have to toss a coin.

George – now I know how you must feel – there are tugs coming out of the woodwork, crying out to be made.
: Re: 1960s Refinery Tug – Parahaki
: model tugman February 14, 2018, 23:23:02
Yes it gets to you Steve, once started there is no cure matey the only medicine is more tugs.👍👍👍👍
Or sit and cuddle the rum bottle .😇😇😇🍷🍷🍷🍷🍷.
Just keep building.  Geo.
: Re: 1960s Refinery Tug – Parahaki
: mike_victoriabc February 15, 2018, 16:39:53
That's a great looking boat - like the color scheme.

Thanks for posting the build along with the photos!