As I have said I purchased an old Tiger Shark cat to attempt a steady 25 knots in outright speed. This boat is 18 feet long.
The mast was 29 feet high and Have cut that don to the hounds and a little off base meaning it is now 24 odd feet.
The original sail has been cut down to a square top and the foot is also a lot shorter.
I have raked the mast like a Hobie 16 and took the boat out for its first run yesterday. The wind was approx 12/15 knots. I went out with two Hydra 16. The Tiger is still faster than those boats but easily controllable by one. It was twin trap.
Top speed yesterday was 15. The main is very flat and I was running the full height old jib at present. I expect to cut that back away from the beam.
At 15 knots boat speed the Hydras were starting to push the nose down and work hard. The Tiger was fully planing and not showing any sign of heeling or nose heaviness.
This is a very rough back yard affair and I now ask for any ideas for trim etc as I finish the tuning positions for gear etc and I start to up the wind speeds.

Finally the idea for cutting the rig was that in the 25 knot wind condition I expect to need for the speeds wanted I will not need all of the extra sail area. I also have 5 feet of useless mast and sail I don't have to drag through the air.

Attachment shoes boat in its old rig. New rig photos when I have them.

Attached Files
133158-IMG_0769.JPG (333 downloads)