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VISION 660
Built by Simpson Mfg. Co. (CAN)
• Designed by Bruce Kirby
General Information
Hull Type:
Keel/Cbrd.
Rigging Type:
Masthead Sloop
Construction:
FG
First Built:
1976
Number Built:
47
Dimensions
Length Overall (LOA):
6.61 m
Length Waterline (LWL):
5.64 m
Beam:
2.44 m
Draft (Max):
1.37 m
Draft (Min):
0.61 m
Weight & Ballast
Displacement:
1,089 kg
Ballast:
404 kg
Ballast Type:
Lead
Sail Plan
Foresail Area:
11.66 m²
Mainsail Area:
8.26 m²
Total Sail Area (calculated):
19.92 m²
Sail Area (reported):
20.62 m²
I (Fore Triangle Height):
8.23 m
J (Fore Triangle Base):
2.83 m
P (Mainsail Hoist):
6.95 m
E (Boom Length):
2.38 m
Engine & Systems
Performance Ratios
Hull Speed:
5.76 knots
SA/Displacement (Calculated):
18.82
SA/Displacement (Reported):
19.86
Ballast/Disp Ratio:
37.08%
Displacement/Length:
169.22
Comfort Ratio:
11.95
Capsize Screening:
2.39
S-Number:
3.38
Notes
The VISION 660 was later sold as the DS 22.