Speed Bumps

   By having the creases there the sail will obviously be very flat as this is usually to do with lots of mast bend so this in its self would be causing less drag.

There will be other reasons but when ur national champion has them in his sail you dont argue too much!

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Calum_Reid Send Private Message Find Member's Posts Groupie Joined: 09 Apr 04 Location: United Kingdom Online Status: Offline Posts: 59	Post Options Post Reply Quote Calum_Reid Report Post Quote Reply Topic: Speed Bumps Posted: 21 Sep 05 at 10:15pm
	By having the creases there the sail will obviously be very flat as this is usually to do with lots of mast bend so this in its self would be causing less drag. There will be other reasons but when ur national champion has them in his sail you dont argue too much!


Oatsandbeans Send Private Message Find Member's Posts Far too distracted from work Joined: 19 Sep 05 Location: United Kingdom Online Status: Offline Posts: 382	Post Options Post Reply Quote Oatsandbeans Report Post Quote Reply Posted: 21 Sep 05 at 9:58pm
	Where ever you look in sailing mags. you see boats sailing around with awfull wrinkles coming out from the luff. Why do they do it?? We are all paranoid about drag so why do we sail around with awfull lumps in our sail when we don't need to ? They aren't even in line with the air flow so they must be draggyand therefore slow. The accepted wisdom is that they are there because if you apply cunningham to remove them you will free the leach and loose power and pointing- I don't buy that. How does "gathering-up" free sailcloth at the bottom of the sail affect the leach of the sail. I'm not talking about grunting the cunningham on, just pull it on until the creases just dissappear (after all this is what we used to do prior to 1980-ish) Confused.