"Bob Crantz" wrote in message
...
Is the leech concave or convex?

A ~ 0.5 x foot x luff for triangle approximation

At least 190 ft^2

Amen!



"Scotty" w@u wrote in message
...
My main is Luff=30'8'' Foot=12'4'' Head to clew=32'8''.
What is my sq. feet? About 180?

Scotty



I am with Bob Crantz on the approximate area (I made it about 189) but you
may have more if the leech is very rounded.
I think your boom is a little tipped upward since if it made a right angle
with the mast your measurement to the clew should have been a little more
than you state.