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TWISTER 28
Built by Uphams/Tyler (UK)
• Designed by Kim Holman
General Information
Hull Type:
Long keel w/trans. hung rudder
Rigging Type:
Masthead Sloop
Construction:
FG or Wood
First Built:
1964
Last Built:
1983
Number Built:
200
Dimensions
Length Overall (LOA):
8.61 m
Length Waterline (LWL):
6.55 m
Beam:
2.46 m
Draft (Max):
1.52 m
Weight & Ballast
Displacement:
4,521 kg
Ballast:
2,099 kg
Sail Plan
Foresail Area:
17.37 m²
Mainsail Area:
14.98 m²
Total Sail Area (calculated):
32.35 m²
Sail Area (reported):
32.33 m²
I (Fore Triangle Height):
10.36 m
J (Fore Triangle Base):
3.35 m
P (Mainsail Hoist):
9.14 m
E (Boom Length):
3.28 m
Engine & Systems
Performance Ratios
Hull Speed:
6.21 knots
SA/Displacement (Calculated):
11.83
SA/Displacement (Reported):
12.06
Ballast/Disp Ratio:
46.43%
Displacement/Length:
447.76
Comfort Ratio:
40.49
Capsize Screening:
1.50
S-Number:
0.69
Notes
First available in wood, then with FG hulls with wood coachroof and deck. By 1970, an all glass version was available. It is thought that the glass boats were molded by Tyler Boat Co. Ltd. and finished and fitted out by other yards.