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SPROG
• Designed by Herbert McWilliams
Market Value
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General Information
Hull Type:
Centerboard Dinghy
Rigging Type:
Fractional Sloop
Construction:
Plywood/FG
First Built:
1946
Dimensions
Length Overall (LOA):
4.27 m
Length Waterline (LWL):
4.19 m
Beam:
1.34 m
Draft (Max):
0.63 m
Draft (Min):
0.10 m
Weight & Ballast
Displacement:
100 kg
Sail Plan
Sail Area (reported):
9.29 m²
Engine & Systems
Performance Ratios
Hull Speed:
4.97 knots
SA/Displacement (Reported):
43.94
Displacement/Length:
37.78
Comfort Ratio:
3.43
Capsize Screening:
2.90
Notes
At one time the largest dinghy class in South Africa. Designed for home builder using plywood. Until 2006 the SPROG was the one design dinghy sailed at all South African University championships.