|Topic Review (Newest First)|
|04-05-2010 06:47 PM|
Spar Talk (LINK)
|04-05-2010 05:51 PM|
No worries. I won't do it if it is dangerous.
I will gather up as much information as possible prior to cutting and welding. ...kind of why I posted the topic here in the first place.
|04-05-2010 01:42 PM|
Seems to me taking a chance on weakening your mast would wiegh heavily in the risk column, with minimal additions (weight and windage) in the benefits column.
|04-05-2010 10:47 AM|
Originally Posted by PorFin View Post
No worries. The reasons are Weight, windage, aesthetics.
|04-04-2010 04:06 PM|
Best of luck.
|04-04-2010 03:54 PM|
Not trying to be smart here, just curious -- what's the benefit of tapering the spar?
|04-04-2010 02:38 PM|
|paulk||We may have had one of those taperd Soling masts on our boat. It was certainly anodized after the welding was done, and held up fine. Sharedwatch has not yet advised the size of his mast or boat, so we have no way of kowing the loads associated with it. Up to a Soling size, rough guesstimates may be good enough. When you get much bigger, more precise info might be a good idea if you don't want the top fraction of your fractional rig to crack off the second time you crank in the backstay.|
|04-02-2010 08:12 AM|
Originally Posted by Faster View Post
Alden Caravelle. I'm not too worried about negatively effecting the CE. -quite the opposite actually. I'll be adding about 6 feet to the rig and changing to fractional rather than masthead. It has been done before to a sister-ship and I have consulted with a naval architect about the rig change.
|04-01-2010 09:10 PM|
Actually I have seen it done many times on Soling masts and unless my memory fails me, which it often does, they cut a tapered slit along each side and pinched them together and welded it up.
Did not seem to be overly difficult but there may be some thing to the heat treating. They may have shipped the spars out for anodizing and it could have had some form of heat treatment then ??
|04-01-2010 08:43 PM|
As far as putting the taper in, strength/wisdom issues aside I believe it's usually done by cutting a vertical wedge in the leading edge, squeezing the section together again and welding the resulting seam.
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