William R. Watt ) writes:

shape: ..... I don't think you will
have to cut your 5 ft bolt into panels.

woops. I was thinking sprit sail here. You will have to make your sail
wider than 5 ft. The aspect ratio simplifies to twice the height divided
by the width. A 5 ft wide sail with and aspect ratio of 4 gives a 10 ft
high sail and only 25 sq ft, much too small. Increase the aspect ratio to
5 and the sail is 12.5 ft high and still only 31 sq ft. Looks like you'll
have to make the sail wider than the 5 ft bolt of cloth by cutting into
panels. You might want to include a boom in the rig.

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try looking up a freeware program called sailcut. it is a perfect
program for projects like this.

William R. Watt wrote:

William R. Watt ) writes:



shape: ..... I don't think you will
have to cut your 5 ft bolt into panels.



woops. I was thinking sprit sail here. You will have to make your sail
wider than 5 ft. The aspect ratio simplifies to twice the height divided
by the width. A 5 ft wide sail with and aspect ratio of 4 gives a 10 ft
high sail and only 25 sq ft, much too small. Increase the aspect ratio to
5 and the sail is 12.5 ft high and still only 31 sq ft. Looks like you'll
have to make the sail wider than the 5 ft bolt of cloth by cutting into
panels. You might want to include a boom in the rig.

--
------------------------------------------------------------------------------
William R Watt National Capital FreeNet Ottawa's free community network
homepage: www.ncf.ca/~ag384/top.htm
warning: non-freenet email must have "notspam" in subject or it's returned



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"I think it would be a good idea."
Mahatma Gandhi
http://www.quotationspage.com/quotes/Mahatma_Gandhi/ (1869 -
1948), when asked what he thought of Western civilization