A CLASS CATAMARAN TUNING GUIDE
The settings below are recommended for Fiberfoam 14 / DNA masts and 80 kg skipper. Download PDF
MAST |
UPWIND |
DOWNWIND |
||||||
|
WIND SPEED
Knots |
SPREADER RAKE |
PREBEND |
CUNNIGHAM |
BATTENS (Top 4 battens) |
MAST ROTATION |
CUNNIGHAM |
MAST ROTATION |
TRAVELER
(off the center line if foling) |
|
5-8 |
42 mm |
20 mm |
OFF |
Light |
45-50 degrees |
OFF |
80 degree if foiling |
180 mm |
|
8 - 12 |
56 mm |
27 mm |
15 - 40% |
Light Medium
(10+ kts)
|
35-45 degrees |
10 - 25% |
70 degrees |
220 mm |
|
12 - 16 |
60 mm |
32 mm |
100% |
Medium |
25 - 30 degrees |
60 - 75% |
65 degrees |
300 - 400 mm |
|
16 - 20 |
75 mm |
38 mm |
100% |
Medium Heavy (18+ kts) |
20 - 25 degrees |
80% |
80 degrees |
500 mm |
|
20 - 24 |
90 mm |
42 mm |
100% |
Heavy |
20 - 25 degrees |
80% |
80 degrees |
500 mm (Hang on!) |
Lighter skipper will slide settings up the range one and heavier skipper will stay down range one setting for best performance. (70kg is light. 90kg is heavy) Mainsheet should be tensioned enough to have an even twist profile from top to bottom and all tell tails should fly evenly.
