Engines > From Plans
30ft 1890's navy steam launch 1/6th scale
Vixen:
--- Quote from: tghs on August 26, 2019, 07:38:03 PM ---the ash was used as trim alternating with cherry,, it more importantly was used in the seating slats that were bent to follow the curve of the stern.. most of my 30ftr files are to large to post but some 40ftr info give you the idea,, all of the "trim" wood would have been kept in a good coat of waxed varnish..
--- End quote ---
The use of ash wood for trim and seating slats seems very sensible. Ash will steam bend easily and provide flexibility for the curved seating slats. It's a trim wood, not structural, and would be relatively easy to replace when necessary.
The last photo looks just like the inside of Boathouse #4 (small craft) at Portsmouth Dockyard here in the UK
Mike
steamer:
Looks like Alex's boat.
crueby:
--- Quote from: Vixen on August 26, 2019, 06:17:57 PM ---I'm No boat builder so I may have this totally wrong. I am surprised at the use of ash wood on a boat, I have only used ash wood to build the frames for vintage car bodies, the wood frames were covered with either metal sheet skins or fabric. The ash frames were used because ash was a light flexible wood, but it tended to wet rot after a few years due to the effect of rain water etc. So you can see my surprise at it being used in a marine environment. Hope you find a suitable replacement.
Mike
--- End quote ---
Ash does get used a lot in boats, fine as long as it is kept painted or varnished - it will soak up water very easily if left bare. It is great for bent parts, just soaking in water overnight will make it very flexible (does have to be straight grained to take a tight bend or it will crack along the grain). I've used it myself for ribs in small boats for decades, never had any rot issues.
Vixen:
--- Quote from: crueby on August 26, 2019, 09:17:36 PM ---Ash does get used a lot in boats, fine as long as it is kept painted or varnished - it will soak up water very easily if left bare.
--- End quote ---
That's interesting. The ash frames of vintage vehicle bodies are generally left in the bare, un-painted/varnished condition. It's the ends and the joints which usually rot out first.
Sounds like vehicle restorers are missing a trick. However, vintage vehicles have become so valuable that they are rarely left out in the wet any more, so the rot problem no longer exists..
Mike.
tghs:
getting back to the nuts and bolts, hopefully I can get to work on the crankshaft this week as I'm still deciding on how to build the connecting rod bottom ends , either using 2 bolts as per Stuart Turner or the strap with wedges as in the prototype..
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version