Specialist Types Of Tug Boat > Classic Diesel Tugs

1960s Refinery Tug Ė Parahaki

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sea monkey:
Well, Iíve had 6 months away from the bench and Iím definitely ready to start another project.

I still have a couple of tiny things to do to completely finish my USN YTL James OíBrien. Only the anchors and the deck rain awning framework Ė 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. Iíll ease myself back into those 2 projects over the next few weeks.

So in the meantime Iíve started on a new build Ė another New Zealand tug, display only.
This time it is a 1960s refinery tug Ė 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 Brookeís of Lowestoft.

They are big Ė even at 1/50 Iíll have trouble convincing my wife that we have room for this big bugger.

While they donít 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.

sea monkey:
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.

sea monkey:
There is a 1/32 model, built in the 60s, of the Parahaki in the Auckland Maritime Museum. Itís not a makersí model but it is pretty good and that is what Iíll be basing my version on.

2tugboats:
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

sea monkey:
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 Ė 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 Ė 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.

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