BLack band befuddlement

[Mormandeus]

Here's another one of those questions. How does one determine the black band limit for the outhaul on your boom. Been searching around and can't find a decisive answer. Mostly just talk about class rules etc. I am quite sure the answer lies within the plethora of knowledge stored here in the great minds guiding this forum with godlike powers.

Thanks for the help...should be sailing this weekend.

 

[Mike B1026]

I'm confused. Aren't they only used for racing and therefor you would use the "class rules" to determine their position either on the mast or boom?

 

[Ted]

Black band

The black band on the end of your boom should equal your "e" dimension as measured from the tack. While racing you are not allowed to tension the foot of your sail so that the clew goes beyond this band. The same principle applies to the band at the top of your mast which is set at your "p" dimension.

 

[Mormandeus]

I was of the understanding that they can be used to ensure that you do not excessively utilize the outhual by giving a visual reference for the maximum extension. It is that mas spot I am concerned with. Thanks for the speedy reply.

 

[Mormandeus]

E is the foot lenght correct?

 

[Ted]

Black band

Yes, "E" is the foot dimension.

 

[Mormandeus]

Thanks for the info. I guess I canset my band limit a little longer than it is now.

 

[Ray Bowles]

Since you aren't racing you might do as I did. I raised my main to full hight without overly stressing the luft. If vertical pleats or creases appear next to the luft then you are overly tight. I then pulled the outhaul back to full extension without creases or pleats on the foot of the sail. Then slowly pull until the first crease starts and back off until it is gone. I marked this point on the boom with paint pencil as "O" directly under the center of the eye of the clew. Then I made marks in 1 inch increments forward on the boom until I went forward 6 inches. Then I set the foot of the sail at the 3 inch mark for a start point. Then I can move the sail forward of back as needed for wind conditions. All the way back for high winds. (A flat sail) Or forward to 5 or 6 for small winds and a sail with belly.
The measurements and marks are up to you and those are not my exact reference points but they do give you a place to start. The 6 inch spread is about right for your 22. You can also make the marks on your line instead. Many sailors like them there. It is simple a reference for different wind strengths.
Ray