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EXPLORER 21 (HELSEN)
Built by Southcoast Boats (USA)
• Designed by Helsen
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General Information
Hull Type:
Swing Keel
Rigging Type:
Masthead Sloop
First Built:
1977
Dimensions
Length Overall (LOA):
6.55 m
Length Waterline (LWL):
5.28 m
Beam:
2.23 m
Draft (Max):
1.22 m
Draft (Min):
0.35 m
Weight & Ballast
Displacement:
794 kg
Ballast:
91 kg
Sail Plan
Foresail Area:
8.12 m²
Mainsail Area:
8.13 m²
Sail Area:
16.25 m²
Sail Area (reported):
16.26 m²
I (Fore Triangle Height):
7.57 m
J (Fore Triangle Base):
2.15 m
P (Mainsail Hoist):
6.10 m
E (Boom Length):
2.67 m
Est. Forestay Length:
7.87 m
Engine & Systems
Performance Ratios
Hull Speed:
5.58 knots
SA/Displacement (Calc):
19.31
SA/Displacement (Reported):
19.32
Ballast/Disp Ratio:
11.43%
Displacement/Length:
150.10
Comfort Ratio:
10.24
Capsize Screening:
2.44
S-Number:
3.69
Immersion:
81 kg/cm
Notes
Nearly the same as the INTERNATIONAL 21.
Market Value
No pricing data available yet.
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