The primary way to get more lift from a sail is to increase its angle of attack. More lift is more power. Two ways to increase a sail’s angle of attack: trim it, or turn the bow off the wind ...

In very general terms, you want to sail upwind with an angle of attack of about 5 to 7 degrees. The angle of attack is the sum of your rudder angle and the amount of leeway you’re making (see ...

Its "sail" is a sail in name only ... causing the wing to rotate a few degrees and maintain an efficient angle of attack. 3. The Counterweight Positioned at the end of a spar, it adjusts the ...