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VIPER 830
Built by Viper Raceboats (USA)
• Designed by Thompson Design
General Information
Hull Type:
Lifting Keel
Rigging Type:
Fractional Sloop
Construction:
FG
First Built:
1996
Number Built:
14
Dimensions
Length Overall (LOA):
8.44 m
Length Waterline (LWL):
7.62 m
Beam:
2.59 m
Draft (Max):
2.18 m
Draft (Min):
0.76 m
Weight & Ballast
Displacement:
1,134 kg
Ballast:
700 kg
Sail Plan
Foresail Area:
16.75 m²
Mainsail Area:
22.06 m²
Total Sail Area (calculated):
38.81 m²
Sail Area (reported):
38.83 m²
I (Fore Triangle Height):
10.88 m
J (Fore Triangle Base):
3.08 m
P (Mainsail Hoist):
10.88 m
E (Boom Length):
4.05 m
Engine & Systems
Performance Ratios
Hull Speed:
6.70 knots
SA/Displacement (Calculated):
35.69
SA/Displacement (Reported):
36.40
Ballast/Disp Ratio:
61.72%
Displacement/Length:
71.43
Comfort Ratio:
8.65
Capsize Screening:
2.51
S-Number:
7.91
Notes
Spinnaker area: 927 sq. ft.