: These are only the rib mortises and they go straight in. As to the angles,
: I'm assuming you are talking about the Deck beams going in at an angle to
: the apummaqs. That I am having to do with a Forstner bit ( 3/8" ) and
: just standing the deck beam next to the hole to show the angle, then drill
: accordingly. I would love to make a jig for those too, but the angles (
: multiple ) of the apummaqs are different for each deck beam. Would be a
: headache to figure out.

I like the looks of Cunningham's deck beam mortice method (although I haven't yet tried it). The mortices are all perpendicular to the gunwales, angled up at the requisite 17 degrees (or whatever you use). The tenons are then cut perpendicular to the angled end of the deck beam. The mortices can all be cut before bending the gunwales to shape, rather than disassembling after marking the deck beams.

It looks easy, and I think I'll try it on my next boat. My current project is drilled and dowelled rather than morticed, and I'm not completely satisfied with it, although it should be just fine once the skin is on and I don't have to look at it anymore. :-)