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ALPA A27

Built by Alpa (ITA) • Designed by Sparkman & Stephens
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ALPA A27 - Photo
ALPA A27 - Drawing

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General Information

Hull Type: Fin w/transom hung rudder
Rigging Type: Masthead Sloop
First Built: 1975

Dimensions

Length Overall (LOA): 8.17 m
Length Waterline (LWL): 7.01 m
Beam: 2.93 m
Draft (Max): 1.60 m

Weight & Ballast

Displacement: 2,930 kg
Ballast: 1,041 kg

Sail Plan

Foresail Area: 20.00 m²
Mainsail Area: 15.68 m²
Sail Area: 35.68 m²
Sail Area (reported): 35.67 m²
I (Fore Triangle Height): 11.58 m
J (Fore Triangle Base): 3.45 m
P (Mainsail Hoist): 10.29 m
E (Boom Length): 3.05 m
Est. Forestay Length: 12.09 m

Engine & Systems

Performance Ratios

Hull Speed: 6.43 knots
SA/Displacement (Calc): 17.77
SA/Displacement (Reported): 17.77
Ballast/Disp Ratio: 35.55%
Displacement/Length: 236.99
Comfort Ratio: 20.29
Capsize Screening: 2.07
S-Number: 2.38
Immersion: 141 kg/cm

Notes

S&S design #2241.

Market Value

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