Posted 25 June 2012 - 11:20 AM
The attachment would need some engineered fittings (thinking laminate molded to fit, then bolted on), and only a couple of feet of pole extended forward.
Would go back to symmetric chute when fully crewed, assuming rating hit would not be prohibitive.
Posted 25 June 2012 - 11:39 AM
Posted 25 June 2012 - 12:02 PM
I know, I know..
Save your self the hassle of breaking your S-Sail pole, go to page 150 of the Selden Catalogue.. It has what your looking for..
Posted 25 June 2012 - 12:17 PM
Posted 25 June 2012 - 01:52 PM
Posted 25 June 2012 - 08:27 PM
Posted 25 June 2012 - 11:09 PM
Posted 27 June 2012 - 07:56 PM
Posted 11 July 2012 - 12:24 PM
The Sparcraft pole is 3mm thick with a 90mm OD, max length is 6' for a 1,000 sq ft asym.
Time to check out globaltecheng.com...
Posted 11 July 2012 - 01:05 PM
Not sure what alloy the Selden/Sparcraft sprits are made of, but you'll want to consider this as well if you're building your own. T6061, if I recall correctly, has better corrosion properties and is more commonly used in marine applications.
I looked at a Soverel 33 the other day that had a custom made sprit fabricated from carbon windsurfer masts and carbon cloth. The "bi-pod" design only extends maybe 2 1/2 feet, but looked sweet and apparently works well. I'm keeping my eye out for some old windsurfer masts just in case I get inspired to build something similar.
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