Sail body touching boom.

RobSwift · 24th April 2008, 07:24 PM

Kevin, do you pay any attention to your sail having contact with the opposite boom arm when you are reaching? I recently bought a new boom and when rigging sails according to the manufacturer's recommendations, the boom will come into contact with the sail when I'm fully powered up. When using the older, wider booms I learned that this meant I was not rigging the sail right. It definitely creates interference in the aerodynamics that drives the board. I know this is a moot point, but I was curious where micro-tuning can make or break a competitor at your level whether or not it is a concern.

Kevin Pritchard · 27th April 2008, 12:59 PM

Not really. I think that it could add a bit of stability to the sail to have it rubbing on the boom. It is not a concern of mine!

RobSwift · 1st May 2008, 06:55 PM

Thanks for the answer, Kevin.

Dan · 27th June 2008, 10:48 PM

Having the sail drape over the leeward boom body certainly changes the way the sail feels, but it may add improvement in the end. I doubt it, though, because virtually all FW racing booms were redisigned with a super-wide clew to prevent the sail from wrapping over the boom after the OH is dumped. The boom companies would not have spent the money retooling if the sail designers and testers thought it didn't make a different.

Maybe what Kevin means is that the issue is not a concern to him because there is nothing he can do about it short of changing boom designs. If you need less outhaul you do what you must.

Mr. Swift, setting the ouhaul is first done by measuring tape. Refer to the distance from the boom only after you tune it using other methods.

24th April 2008, 07:24 PM	#1
RobSwift Member Join Date: Aug 2006 Posts: 85	Sail body touching boom. Kevin, do you pay any attention to your sail having contact with the opposite boom arm when you are reaching? I recently bought a new boom and when rigging sails according to the manufacturer's recommendations, the boom will come into contact with the sail when I'm fully powered up. When using the older, wider booms I learned that this meant I was not rigging the sail right. It definitely creates interference in the aerodynamics that drives the board. I know this is a moot point, but I was curious where micro-tuning can make or break a competitor at your level whether or not it is a concern.

27th April 2008, 12:59 PM	#2
Kevin Pritchard Dream Team Member Join Date: Jan 1970 Posts: 442	Not really. I think that it could add a bit of stability to the sail to have it rubbing on the boom. It is not a concern of mine! __________________ Kevin Pritchard To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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1st May 2008, 06:55 PM	#3
RobSwift Member Join Date: Aug 2006 Posts: 85	Thanks for the answer, Kevin.

27th June 2008, 10:48 PM	#4
Dan New Member Join Date: Aug 2006 Posts: 18	Having the sail drape over the leeward boom body certainly changes the way the sail feels, but it may add improvement in the end. I doubt it, though, because virtually all FW racing booms were redisigned with a super-wide clew to prevent the sail from wrapping over the boom after the OH is dumped. The boom companies would not have spent the money retooling if the sail designers and testers thought it didn't make a different. Maybe what Kevin means is that the issue is not a concern to him because there is nothing he can do about it short of changing boom designs. If you need less outhaul you do what you must. Mr. Swift, setting the ouhaul is first done by measuring tape. Refer to the distance from the boom only after you tune it using other methods.