I've got 8 darts so far in my FAP-14 (ok, more like an FAP-15), and it needs two more.

Initially I cut four darts from just above the chine coming up and around the gunwales to the deck tube. These are at 8 inches in front of rib 2, and 8 inches behind rib 3 both sides.

I cut four more at rib 2 and 3 from the gunwales to the deck tube both sides. Need another cut dead center.

Initially in trying mine in one piece, I didn't think it quite possible, so I cut a series of tabs in the pvc along each side of the deck tube, kind of like Bill Lowe shows on his site in the cockpit area. I should have just left it straight as now I'll need an extra wide piece going down the center to cover the gap, but the amount of extra bunched up material at first overwhelmed me, due to my first time sewing, and not just gluing separate panels together as Hendrik Maroske has shown on his site.

Anyway, the pvc is easily glueable, so easy to fix. You want to make sure the fabric is tensioned by drawing in towards the decktube, so gather any extra bunching together so it is parallel to the rib, that way the fabric on either side is flat, and not pulled forward or backwards. Slice, then just overlap the the bunched up fabric, and it will form a "V". Glue with HH-66 cement.

: skin. I thought the 61" fabric perfect to fit in one piece, starting
: from the cockpit, working fore and aft, tightening to remove wrinkles as I
: went and cutting in darts when necessary. Not that easy, especially for my
: first upholstery job! Too many wrinkles in too many places.

The whole point of doing a one piece hull is to not have any seams below the waterline. My first pvc panel glued hull seams are still doing well, but I still believe a one piece hull is stronger than overlapping 3/4in glued up sections.

: A friend's daughter is a seamstress and does upholstery and suggested that I
: was going about it backwards. She said it should be much easier to make my
: cockpit and top seam from the two straight, uncut sides of the fabric,
: tight only at the cockpit, then turn craft upside down, pull it tight and
: should only need two darts - both at the keel.