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SOUTHERN CROSS 31

Built by C. E. Ryder (USA) • Designed by Thomas Gillmer
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SOUTHERN CROSS 31 - Photo
SOUTHERN CROSS 31 - Drawing

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General Information

Hull Type: Long keel w/trans. hung rudder
Rigging Type: Cutter
Construction: FG
First Built: 1975
Number Built: 150

Dimensions

Length Overall (LOA): 10.52 m
Length Waterline (LWL): 7.62 m
Beam: 2.90 m
Draft (Max): 1.40 m
Headroom: 1.88 m

Weight & Ballast

Displacement: 6,169 kg
Ballast: 1,996 kg

Sail Plan

Foresail Area: 26.28 m²
Mainsail Area: 19.75 m²
Total Sail Area (calculated): 46.03 m²
Sail Area (reported): 41.53 m²
I (Fore Triangle Height): 11.13 m
J (Fore Triangle Base): 4.72 m
P (Mainsail Hoist): 9.60 m
E (Boom Length): 4.11 m

Engine & Systems

Engine Type: Diesel
Engine Power: 22 HP
Fuel Capacity: 129 L
Water Capacity: 178 L

Performance Ratios

Hull Speed: 6.70 knots
SA/Displacement (Calculated): 13.68
SA/Displacement (Reported): 12.60
Ballast/Disp Ratio: 32.35%
Displacement/Length: 388.57
Comfort Ratio: 37.62
Capsize Screening: 1.59
S-Number: 1.02

Notes

LOD: 31.0 ft