The main reason for a jib to exist is that its profile combines with that of
the mainsail when going upwind in a way that increase considerably the
overall lift. The reason is very aerodynamical and not very easy to
visualise, it has to do with the combination of the fluid flow
circuitations.

On the other courses it's more square metres of sail there to push more
without adding extra heeling on the boat, since they are at low height above
the center of buoyancy.

At the beginning of your career you'll find very easy to steer the boat
upwind just on how the little red and green lines fly near the luff.


"James L" ha scritto nel messaggio
...
I am a newbie on a Laser Pico. Can someone explain to me what the jib
sail
does and how it works?