Thread: What skills and tools do i need to build this?

Originally Posted by simonl

They can't be unless it's a Tardis life boat!

They seem dimentionally different in length. The inside pic shows more rivited joins from bow to stern. In any case it's an interersting project. Thanks for the pics.



Simon

the top doesnt show the portholes

Originally Posted by stonedpirate

Thanks all (well, all but one :P )
................
I still like the idea of a floating bubble and will consider ply/epoxy or fiberglass.
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Have you considered doing it in concrete? Do a Go.ogle search for "concrete ship hull".

Photos were taken from: http://nn.wikipedia.org/wiki/Ole_Brude

22 of these boats were made.

Perhaps the interior is from another build. Not sure but the dimensions are the same even if the portholes and panels are different.

I realise that this hull shape is perfect for ferrocement but personally i am not a fan of the stuff.

I like this boat in large part due to its steel tank like toughness. Ferrocement has been very hit and miss over the years

I am pretty sure this is the interior of the onw in the first post:

Originally Posted by Grahame Collins

The lifeboat looks like a great project and will be a very difficult one in terms of the varied skills, equipment and venue to build it.

Your main problem as I see it, is that these needed skills are not currently or commonly used skill sets. As no one builds craft of that shape and material type, much any more the skills mentioned are dissipated over a number of different trade areas, not really available as a package from one particular trade,so to speak.

These are metal layout and marking ,sheetmetal ,boat building, and caulking and riveting.

I know someone that could probably build that shape in Al and that is my BI: who has worked in the boat building industry for 30+ years. For about a decade he worked on his own building custom designed Al boats up to 7 m long. He used to get his Al panels water cut to shape and some of the compound curves he made using come-a-longs, the outrigger feet of Hiab and other hydraulic devices were quite amazing. I used to love watching him take the ripples and bumps out of large curved panels using an oxy and a wet rag. These skills have taken a lifetime to acquire so its unlikely that anyone could pick up all this in short order.

yep

I'm pretty sure Rustyarc was just joking when he mentioned hydroforming but I think it's actually not that crazy an idea. You could make single-plane rolled sections and weld them together to get an approximate shape, fill with a few kilolitres of water, then pump it till it's round.

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Its looks like a cool technique but i think on a project this size it would look like a crumpled coke can.

Not being a boilermaker, but having watched quite a few at work over the years, I thought that Grahame might have suggested shaping by selective shrinking of areas that couldn't be rolled to shape. That was a great link Grahame, I hadn't ever seen any of Wrays work before, but he certainly is most skillful in his work. I loved his Maseratti 300S nosecone only slightly less than the photo of a glorious red example of the vehicle. I had forgotten just how pretty they were.
Rob.

Saw a show on the idiot box, where production 30'+ boats were made of ally, panels were cut to shape and the seams fully welded, it was then lowered into a concrete mold, filled with water, explosives and then set off. When it came out, it had that clinker effect. Don't know correct terminology. Could be worth a try, but not with neighbours close by unless you want a visit from the police.
Kryn

[QUOTE=KBs PensNmore;1858352Don't know correct terminology.
Kryn[/QUOTE]

form firing...lol