Tug Forum

Specialist Types Of Tug Boat => Pusher Tugs => : sea monkey October 28, 2018, 22:20:57

: The Tiny Tumeke – 9m Pusher Tug
: sea monkey October 28, 2018, 22:20:57
NZ is a small country and we don’t have the variety of tugs that some of your countries do. No navigable rivers – so no tow-boats or barges, no ice – so no icebreakers, only one gas field so no X bows or AHTS, no logging tugs, no salvage tugs, no SDMs, no ATBs – mostly just harbour tugs, big and small.

I usually try to find an interesting and unique local New Zealand tug to build but none of my models are truly unique – someone else has built one too.

My ATB is one of an identical pair I made (the other is in New York); my SDM was inspired by several forum members’ efforts; there are a few Karetai/Rangi models around too. There is another 1/32 Parahaki in Auckland Museum; I built the forerunner of my Koraki as a toy for my son 20 years ago so I have 2 of them. There is another fine James O”Brien in Nelson, and there are several Kupes in my town. I might have the only examples of the Hikurangi and Kumea but no guarantees there.

: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey October 28, 2018, 22:27:38
This subject certainly is unique in NZ but it also may not be a ‘one off’ it has been featured in one of the European model forums (either Polish or Czech – I think) so a model may already exist.

It’s the Tumeke – the only pusher tug in the country – and it’s quite unique in NZ. I have built a pusher tug before – the 132ft Christian Reinauer ATB from NYC – but the Tumeke is very different. For a kick-off, it’s tiny, only 9m long (27ft). That’s smaller than a small truck. It could go on the New York ATB as deck cargo.

And it’s not pretty – some might even say ugly. It certainly is ‘challenged’ in the looks department.

It was built in 1995 by Northeastern for Benson Brothers (to a Chris Benson design) and is now based out of the major port of Tauranga. It spends most of its time pushing a harbour works barge and dredge around the small provincial ports on the Coromandel Peninsular, making and repairing marinas.

Tumeke means ‘startled’ and I’m sure you would be, in a high sea.  It doesn’t look as if it would be very stable without a barge attached.

It has a double chine steel hull, 400HP Caterpillar engine with a kort nozzle, a bollard pull of 4.5t, and a maximum speed of 7knots. All very modest specs.

A few years ago the wheelhouse was extended at the rear but I’ll be making it as it was originally built – with the smaller wheelhouse. The railings have also been altered in the last few years but I’ll stick with the original design for them. As usual, not too much reference to go on, but it should be enough to work with. The owner’s are happy for me to get on board and take a few photos so I might plan a weekend in Tauranga when the Tumeke is next back at base.

In the meantime I can start on the hull. As usual it’ll be 1/50 display only.
: Re: The Tiny Tumeke – 9m Pusher Tug
: Kiwinz October 29, 2018, 23:54:35
Nice little project Steve. Just a weekend job for you being that small! Look forward to the end result. I'm sure Tauranga will be a nice drive from Wellywood.

Simon
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 05, 2018, 01:15:57
You're not wrong about fitting it into a weekend, Simon. It's so tiny I was ab;e to make some good progress on Sunday.

Last week I drew up the hull based on various photos and then figured out a simple system of hull profiles and keel. These were laser cut out of 3.6mm ply. The deck was pretty simple as the bow is just a semi-circle, cut out of birch ply.

All frames, keel, construction stand and bracing fitted onto an A4 sheet. The decks and all superstructure components fitted onto another A4 sheet of 1.2mm ply – and that included a few spare parts as well. At least material costs won’t break the bank.

: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 05, 2018, 01:18:15
A couple of days later and the parts are back from the laser cutters and all ready to use. The triangle sections that were cut out of the frames will be used as bracing to keep everything square to the keel. I also included some pieces to make a construction cradle – this model is so tiny it doesn't fit into any of my existing ones.

: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 05, 2018, 01:19:59
It only took about an hour to assemble the basic carcass. The bracing is probably a bit over the top. The thing is a solid as a rock.

And only another hour or so to attache the decks and pack out the bow. As this one is display only I don't need to worry about space in the hull. – wouldn't be any in there anyway.

: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 05, 2018, 01:21:49
It's a strange looking beast!

I’ll skin the hull with a layer of 1mm birch. That’ll also work for the bulwarks. They’ll all be hand-cut to fit – hopefully!
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 06, 2018, 20:18:31
I managed to get a few hours in the other day and skinned up the hull in 1mm ply. Quite a straightforward process although the middle chine was a very complex shape.

I wanted a uniform width for the middle chine section so I attached the hull top sides and bottom panels first and then evened out the gap so that the middle section was nice and even looking. Sounds simple but it took several attempts to get the perfect fit. Well, close enough that a little filler will hide any errors.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 06, 2018, 20:20:33
At this end of the build everything seems to move quickly and you can really see progress, and at this size cutting out parts takes no time at all.
: Re: The Tiny Tumeke – 9m Pusher Tug
: Capt.Towline November 06, 2018, 23:25:21
Coming along nicely Steve....keep the pictures coming
: Re: The Tiny Tumeke – 9m Pusher Tug
: tugboyben November 07, 2018, 12:01:35
Super work keep posting the picture

Jason
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 12, 2018, 20:19:59
Thanks Tugboy and Capt T,

A bit more progress to report after a few hours at the bench over the weekend.

Once the hull plates and bulwarks were securely in place I slotted in the bulwark knees around the stern. Once again, squared up with a trusty piece of Lego.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 12, 2018, 20:26:43
 The side bulwarks are perpendicular to the deck (not angled inward) so any bracing/knees can be added later. The ransom is 2 layers or .5mm ply cut to fit – after a few attempts to get the pattern right. The whole transom area is surprisingly strong.

Next job was to add the steering box, the rest of the bulwark knees and cut out the scuppers/freeing ports.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 17, 2018, 20:58:28
Not too much progress to report this time.

Added the rubbing strip, made from basswood. That didn't take too long – basswood is very easy to cut and sand so shaping the parts to fit was not too difficult. The strip is made up from 5 sections: stern/transom area, stern corners x2, bow x2, and 2 mid sections.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 17, 2018, 21:04:11
The bow sections have a slight curved shear so they were glued, pinned and firmly clamped overnight to make sure the maintained their shape.

Also added the capping rail – this will have a hand rail added a bit later on.

Strangely enough this tug doesn't have any anchor wells. Don't know how they handle that when they need to use an anchor.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey November 17, 2018, 21:14:08
Didn't need to attach the push knees just yet but I couldn't resist, just to see how they would look.

And also added the bulwark knees/bracing, the freeing port edges and the hawser holes – all styrene strip and tube. The hull is starting to look a bit tidier now and getting to the stage where I'm finding fewer and fewer things to fill  – almost ready for some primer...
: Re: The Tiny Tumeke – 9m Pusher Tug
: Kiwinz November 18, 2018, 00:48:50
I know the feeling of anticipation..I like it finished before I've started! Interesting wee tug design. Keep going..we're all watching as usual
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 02, 2018, 01:16:10
It has been a couple of weeks since my last post and sadly there isn't much progress to report. Unfortunately other commitments have kept me away from the bench for awhile. Not much respite in the next few weeks either. Still, I have been able to squeeze in 10 minutes here and there, and get a few little things under way.

I assembled the laser cut parts to make up engine room housing and the wheelhouse.

As you can see from the wheelhouse parts, I had to amend the aft bulkhead. When I get the parts laser cut I usually double up on components so that I have a few spares in case I mess anything up. This time I just clean forgot to include an aft bulkhead. Not a major problem – I used a couple of side spare walls to form a makeshift aft bulkhead. A bit of paint and you'll never know the difference.

The funnel is 4 layers of laser cut 1.5mm ply with the ends sanded to a semi-circle.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 02, 2018, 01:18:33
The engine room was pretty simple – the parts fitted together pretty well and the only thing I needed to do was corners the corners down to the right radius. It's a strange shape but it makes sense when it's on the boat.

The Kort nozzle was a little trickier. The diameter didn't match any available brass or styrene tubing, I tried a few household items like glue sticks, water bottle tops, marker barrels, etc but they were either slightly too small or made from a material that wouldn't sand well. Eventually I resorted to an old standby and wrapped a few layers of 0.3mm styrene sheet around a piece of dowel that had been sanded to the right size (the inside diameter of the Kort nozzle: 17mm).

I'll be making the propellor from PE brass components as I can't get a ready made one in the right size (4 blade/15mm/Kort). The PE parts arrived from Scotland on Friday while I was at work. No-one home to sign for them so now I need to pick them up from a Post Office across town and that in itself is a mission at the moment. Might have to have a long lunch tomorrow.

I did also get the rudder footing installed.

I usually have this as part of the laser cut keel, and I usually end up snapping them off at some stage of the build.

This time it's made of square brass channelling. I won't be snapping that one any time soon – touch wood.

The boat will have dual rudders. Tiny and fiddly at this size.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 02, 2018, 01:21:22
...and the underside of the hull with a coat of primer. Now to work my way through the sandpaper up to the wet & dry grades
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 10, 2018, 21:19:10
A little progress since my last post.

The superstructure for this model is quite simple. It came together without any problems.

: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 10, 2018, 21:21:11
A few more fill/sand/undercoat sessions later and with the wheelhouse and superstructure loosely fitted in place the boat's starting to look OK.

I'll load these next images over a few separate posts.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 10, 2018, 21:22:49
A few more...
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 10, 2018, 22:28:53
That's all of the bulky items taken care of, so onto the fiddly bits.

Next step is to install the prop shaft and rudders, and the hull welding seams, and make the propellor.
: Re: The Tiny Tumeke – 9m Pusher Tug
: mike_victoriabc December 11, 2018, 05:43:11
Interesting build - thanks for posting
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 16, 2018, 22:33:56
Thanks Mike.

Had a few hours at the bench over the weekend and got a few little tasks out of the way.

The hull on the real boat has quite pronounced welding seams. To recreate this look I used the smallest diameter half-round styrene I could get . It's a little out of scale but once I get some paint on it you won't notice it.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 16, 2018, 22:35:04
These little jobs seem to take more time than I allow for.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 16, 2018, 22:36:31
Still a wee bit of work to do on the hull but it's almost ready for some paint.

Also soldered up the rail that goes on top of the bulwarks and attached it.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 21, 2018, 19:02:13
Had one more session of fill/sand/prime the other day and decided that I was happy with the basic hull – so far.

So now I could add a few hull details such as: anodising plates, fender eyes, steering box access plate – and, most importantly – the propellor shaft housing and its supports struts, and the rudder mounts. All small jobs but they all seem to take ages. The shaft mounts went in very easily – more by good luck than good management.

The fender eyes aren't glued in yet, they'll need to thread onto some chain to hold the tyre fenders, before they can be glued in permanently.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 21, 2018, 19:03:56
The brass rods are used to align the rudder shafts.

Now for some paint.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 26, 2018, 13:40:03
It is summer holiday time down here at the moment so I've been able to get a few hours at the bench and make a little bit of progress over the past few days between the usual Christmas eating and drinking bouts

I'm happy with the hull – it's all primed and undercoated, and had a good session with the wet&dry sand paper. It has already had a first of several top coats.

While I'm waiting for the hull paint to dry I can get on with the engine room housing and the propellor.

No commercially available props are available at the size I need (15mm 4 bladed Kort). I'm sure I could have had one custom made but I can't really afford that, so I thought that I'd try making one myself. I had the basic shape photo etched and Hey presto! a prop.
A little filing and it'll be fine – it is housed in a Kort nozzle behind 2 rudders so you'll hardly see it at all.

I'm happy with the result – it is for display model only and looks fine when in place.

I took a punt and also etched some props for a couple of future projects that require unique shaped props.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 26, 2018, 13:41:41
The engine room housing/superstructure is quite small and needed a few PE parts attached.

The doors turned out quite well.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 26, 2018, 13:44:09
...with the PE parts attached
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 26, 2018, 13:45:43
...and painted.

And yes, I still need to attach the lifebuoy hooks.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 29, 2018, 11:45:04
The weather over this Christmas break hasn't been great so between trying to finish off the giant Christmas ham and the humungous trifle I made on Boxing Day I've been able to put some time into the little Tumeke.

The weather has been warm, cloudy and windy – perfect painting weather, so I managed to get the hull completed and painted. I haven't worked on anything this small for long time and it is a very confined area to work with. I have a better appreciation for you guys working in 1/96.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 29, 2018, 11:48:04
The smell of thinners wafting through the house hasn't been widely appreciated.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 29, 2018, 11:49:44
The propellor and rudders are not permanently attached yet – just there for show at the moment.

At this stage of any build I usually think that I'm at the half way mark – hull completed –  superstructure and deck equipment to go. However, the little Tumeke has hardly any superstructure and virtually no deck gear. The mast and lights are very simple. Hopefully the railings don't causes too many problems.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey December 31, 2018, 19:44:02
A little more progress to report.

The wheelhouse window frames have been attached. They won't be glazed until after painting.
There will only be minimal interior detail on this model, similar to what I did on the steam tug Kumea: wheel and speed controller only.

I also fired up the soldering iron and knocked out the railings. They went together without any drama – something that always gives me a sense of surprise – and great relief.
: Re: The Tiny Tumeke – 9m Pusher Tug
: VANYA January 03, 2019, 01:37:16
Steve,

You obviously polished off the boozy trifle before embarking on the railings.

Happy New Year.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 05, 2019, 19:01:44
Ha Ha – yes Hayden, I didn't shirk with the trifle, and I certainly showed that ham who was boss.
Steve

: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 10, 2019, 11:54:51
All good things come to an end, and I'm back to work on Monday after my summer break.

I've got to say that lounging around doing nothing is way more enjoyable than working, not sure how much longer this working full-time thing will last.

So, I have a few days to try and finish off the Tumeke. The ham and trifle are now just fond memories so I shouldn't have any distractions.

Not too much left to do now. I attached the fender strips and tyre fenders. Attaching the tyres by chain took a lot longer than it should have and needed a few tries at each one. Very frustrating when something that should be quick and easy goes wrong.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 10, 2019, 11:57:13
A few more from the other side...
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 10, 2019, 12:00:38
The engine room housing is now in place and it's starting to look like it should.

Next step: railings, and then the wheelhouse.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 12, 2019, 18:39:46
The railings went on no problem, and then the funnel, wheelhouse, mast, and remaining deck equipment.

Now it's all completed and already consigned to the shelf.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 12, 2019, 18:41:32
Working on something this small also had its own challenges.

I'm mostly happy with how it turned out but I can see where I tried to take a few shortcuts. Hopefully I'll forget about them in a few months' time. It's amazing how quickly you forget about all of the tedious work and mistakes along the way. I look at some of my older models and have no idea how I managed to make them.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 12, 2019, 18:46:01
some more
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 12, 2019, 18:46:59
Working on something this small also had its own challenges.

I'm mostly happy with how it turned out but I can see where I tried to take a few shortcuts. Hopefully I'll forget about them in a few months' time. It's amazing how quickly you forget about all of the tedious work and mistakes along the way. I look at some of my older models and have no idea how I managed to make them.
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 12, 2019, 18:48:08
So – another project finished and I can start on the next – yahoo!!
: Re: The Tiny Tumeke – 9m Pusher Tug
: Kiwinz January 14, 2019, 08:23:19
Even the photography is top notch! Looks surpurb indeed.
: Re: The Tiny Tumeke – 9m Pusher Tug
: Kev30 January 14, 2019, 10:23:04
Very interesting build thanks for posting this on this site.
Regards
Kevin
: Re: The Tiny Tumeke – 9m Pusher Tug
: sea monkey January 14, 2019, 15:31:53
Thanks Simon.
Thanks Kev.
: Re: The Tiny Tumeke – 9m Pusher Tug
: Capt.Towline January 17, 2019, 01:05:58
Nice little project for an unusual little tug. Have enjoyed following along; thanks