11 replies to this topic

[CJV]

Wondering if the stock T10 spin pole can be fastened to its toe rail for a temporary asym short-handed PHRF application.
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.

[MSA]

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..

[CJV]

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..

I know, I know..

[MSA]

Sometimes keeping it simple and sticking with a proven option ends up cheaper and easier... I love to "play" with different set ups too.. It depends if you want to risk the worst case..

[Rail Meat]

Having snapped my sprit off in the past week and half, I can attest that the loads are going to be different. Do it right.

[tomtriad]

I made an 8' bowprit for use with a 1,000 sf assym from a 3" diameter aluminum reaching strut off an old monohull for my 42' tri; 3 courses of 3/16" vectran for the bobstay, single courses for shrouds to the amas to take side load. Cost was $75 at a local used gear chandlery for the strut, around $15 for the Vectran. Works great for the assym. Would not work for a code 0 or screecher as the loads are so much higher.

[knobblyoldjimbo]

ok for a tri because you have the angles to hold the weak pole in place - on a mono the angles are too close and you'll get a broken pole and a lot of trouble when it breaks.

[Need4speed]

http://www.sparcraft...its/default.asp

[GMiller]

I like messing around with this type of stuff on OPB's. Easy and cheap enough to try with some cheap tubing from www.globaltecheng.com in either aluminum thick wall tubing or bombproof stainless. 7' piece of stainless runs about 100 clams, about 1/3rd that for thick wall aluminum. Wood plug for the end, a long eye bolt with nut for 3 bucks and voila! Lash it to the bow cleats and slotted toerail if you have one.

[CJV]

So: stock spinpole a bad idea. Purpose-built pole for $900-1K could work, but a custom job on the toe rail would avoid foredeck attachment (it's been re-cored) and cost less.

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...

[prof_mariner]

A buddy of mine mounted a Selden unit to his toe rail using a section of T-track bolted to his toe rail. This allowed him to connect the aft end of the sprit to a sliding fitting making easier/faster extension / retraction.

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.

[SailMaxx]

Selden has a nice new outboard fitting that can mount to some anchor rollers. This brings the ring more outboard allowing the pole to go further out.

http://www.marinerpa...508-834-14.html