Timber for bowsprit

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Mar 29, 2008
10
Ta Chiao CT41 Long Beach
you guys crack me up :)

fur ... lol (ross).. FIR does seem like it is prone to rot, though whether the rot I've experienced is premature, is open to debate. I have pictures of that same 'sprit dating back to 1981 so I assume it is the original timber. Joseph, I just personally feel that though the use of laminates may be fine for furniture from IKEA, my experience with them in the housing industry ie. particle, waffle and ply woods is that they don't play well with moisture. The plys tend to separate even in merely humid environments and once a fissure between plys occurs, the veritable 'seal' is broken and the separation travels quickly. The primary reason for not going the laminate route, however, is aesthetics. I have a lot of wood on this yacht and I hope that a well varnished piece of solid timber will not only look nice but, because I do not intend to paint it, any moisture 'seepage' will be immediately apparent through the varnish coat and quickly dealt with. what you say about warping, however is a point of concern. Something else to worry over... thanks buddy! :) Liam.. i did consider hard mounting a brass 18 pounder cannon in its place, to deal with those pesky pirates! But seriously, while steel is practical, it wouldn't quite fit the 'theme' I am trying to maintain. Thanks for all the responses people! I'm going to pick out my timber this afternoon. Ill keep y'all posted
 

Ross

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Jun 15, 2004
14,693
Islander/Wayfairer 30 sail number 25 Perryville,Md.
Jason, The US forest service wood handbook is

full of good information concerning the durability of wood. Old growth Douglas Fir has good duribility ratings. Laminated lumber made up of 1 inch to 2 inch thick staves is quite stable. Remember that varnish is a high maintainance finish.
 
Jun 13, 2005
559
Irwin Barefoot 37 CC Sloop Port Orchard WA
Jason, remember that larger pieces of dry lumber can

crack and split, and your experience with household plywoods does not equate to the use I have proposed. Plywood is alternate grain thin lairs with interior voids (unless it is marine plywood which has voids filled. Beams, Tillers, And boat frames have thicker pieces laminated together with the grain all running in the same direction. I'm just trying to clarify your impression of laminates used for structural reasons, not trying to change your mind. Good Luck Joe S
 
May 18, 2004
259
J-boat 42 conn. river
any guesses about premature rotting?

I have a theory! Probably the intense heat boiled the resins out of the wood. this would leave an extremely dry wood. with no resin to keep the moisture out of the wood, i can see how it would rot very quickly. S/V Que Pasa?
 

Ross

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Jun 15, 2004
14,693
Islander/Wayfairer 30 sail number 25 Perryville,Md.
Capt Jim, The resins in wood vary from species to species

Western Red Cedar is very dry with almost no resin but is among the most durable and is also very soft and light. Spruce has quite a bit of resin but is among the least durable of the woods. Decay resistance is very complex and can't be simplified by just a few characteristics. Hard versus soft won't work because black locust is harder than teak and is very durable but Paulonia is soft and light like Balsa wood and is also very decay resistant. Sap wood of all species is not decay resistant. Teak has been used for decks because of its durablity and non-slip wet character. It seems to be heat resistant.
 
Mar 29, 2008
10
Ta Chiao CT41 Long Beach
my two cents

well, if sap has any bearing on longevity of wood, I'm in luck. The FIR beam I ordered was literally oozing with it :) As to guesses on the origin of the rot... I expect that a belatedly resolved termite infestation created pores into which the initial moisture crept. Thereafter, haphazard attempts to 'fix' it and then conceal it for the new buyers (me) were made, prolonging the decay and leading to the current need for its replacement. I was, however, amazed to find that where the fir was mounted to the teak deck, the teak is still in like new condition, whereas the fir was rotted through! From what i can gather, the last time the Bowsprit came off was 1984 and the 'sprit itself was probably the original from 1974... thanks for your thoughts! - jason Im also keeping a running update with pictures on the annmarion website under http://apps.annmarion.com/blog/
 

Ross

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Jun 15, 2004
14,693
Islander/Wayfairer 30 sail number 25 Perryville,Md.
Jason, from my observations termites are finicky

critters. I have seen three 2x10 planks nailed together and one of them completely consumed and the other two untouched and all the same species. You do have dry wood termites on the west coast and that is a different problem than we have here on the east coast. A lot of resin indicates old heart wood. This is good! Fair skies and good winds. Ross
 
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