UK-Cherub Forum

Cherub Chat => Tech Chat => Topic started by: dave_ching on April 29, 2012, 10:07:23 AM

Title: Sail Design
Post by: dave_ching on April 29, 2012, 10:07:23 AM

Hi,
As I have mentioned I will be building some white sails in the near furture.
Any thoughts on design?

Title: Re: Sail Design
Post by: Andrew Whapshott on April 29, 2012, 10:17:13 AM

Free simple design program that I've been using for my model sails;
 
http://www.sailcut.com/Sailcut_CAD     Find the download section, theres also a full handbook.   ;D   Not sure whether or not it has been used for bigger sails, seems pretty good at small ones.

Hope that helps.  

Title: Re: Sail Design
Post by: john_hamilton on April 29, 2012, 10:26:52 AM

small and v. flat! break some speed records!

Title: Re: Sail Design
Post by: Neil C. on May 02, 2012, 11:24:09 PM

Hi Dave,

Simon Roberts has created his own sail design program. He was talking about making some sails for a 12 foot boat last time I spoke to him. I'll PM you his e-mail address if you want to chat to him about it.

Title: Re: Sail Design
Post by: Torchy on May 14, 2012, 11:46:09 AM

From a complete bumbly/newbie...

Flappy topped sails are going out of fashion (I think, in Cherubs anyway) but in theory they take area out of the leech, low down (where it may not be much good anyway and makes gybing more difficult) and put it into creating a head which is of use instead of just knocking you over...

Loco's flappy top now sets beautifully simply by putting screw-type batten tension adjusters on.

I hope I can accurately set tension for different wind strengths and allow the top to automatically free to prevent over-powering - who needs adjustable uppers? (well, they might help as well actually)

Loco's main sets much better now:
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