I haven't got a clew.....

[Oscarvan]

I know the parts of my marconi main: the sides are bottom-foot, front-luff and back-leech. The corners: head, tack and clew....so far so good.

Now I'm learning that on a gaff sail the fourth side, the one attached to the gaff, is called the head......

So, what do we call the corner between the head and the leech?

[Jase]

throat?

[P.I. Stazzer-Newt]

Peak, see also throat.
http://en.wikipedia.org/wiki/Gaff_rig

[ssor]

Peak. Throat is the gaff -mast intersect.

[Thorne]

From - http://www.shallowwatersailor.us/sws...ing/index.html

[Oscarvan]

Peak it shall be. Thank you.