90ft Catana in a gale, and some good sailing, question

[Guest]

Hello all- Here is a video of a 90ft Catana sailing across the Atlantic. Some

gale footage, and some good sailing conditions with commentary.

 

 

I have some mainsail trim questions. When trimming, we sheet the jib first, then

on the main I aim to have as many telltails streaming aft as possible and as

many telltails on the leach of the sail streaming aft also.

 

Thing is I'll get all the tell tails streaming as best we can and let the boat

speed settle out to say maybe 10K. Then I'll sheet in or out just a little and

the boat will often take off, going from 10 to 12 knots, or 12 to 14. The

telltails all still look about the same, but often we get a big boost in speed.

 

I'm looking for tips on trimming main to the best advantage without this last

trial and error?

 

Any ideas?

 

Thanks!

 

Scott