A 155 is for light airs. In more wind the main luff inverts because of
the slot being too narrow to carry the air flow. It des not mean you
will lose any speed though -as the loss of attached air at the leward
luff of the main is now carried by the genoa leech. The benefit of
changing down earlier to stop this is that you then have a sail with
better shape as the 155 will lose shape quite quickly -uless it's very
exotic. In close winded boats this is a common feature.

Cheers MC

Dennis Vogel wrote:

155%


What was the headsail?

Cheers MC

Dennis Vogel wrote:


Hi,

I'm in the process of getting another Pearson Flyer and have some basic
questions.

On my last Flyer I could never stop the main from luffing the first 12%

or

so when pointing except in heavy air when I would make the main very

flat.

Some have told me it's not a big deal. But am I loosing some forward

drive

when the entire main is not working?

BTW, I used an outboard track when trimming the headsail. It was not on

the

rail but close, and the main still backwinded a little.

I'm going to get all new sails and I want to do this right. I appreciate

any

input. A few more questions please.

When I tune the rigging I try and make the boat have just a little

weather

helm when going to weather.

Do I tune the rigging first and let my sail maker take it from there? Or

is

it new sails first then work on the rigging?

Can I do something in combination with the rigging and the way the new

sails

are cut to stop the main from backwinding(if this is an actual problem)?

Thanks,

Dennis