ALPA 21
Hull
Fin with transom hung rudder
Rigging
Masthead Sloop
LOA
21,25 ft i.e. 6,48 m
LWL
18,6 ft i.e. 5,67 m
Sail Area
245 ft² i.e. 22,76 m²
Beam
8,16 ft i.e. 2,49 m
Displacement
2868 lb i.e. 1301 kg
Ballast
800 lb i.e. 363 kg
Max Draft
4 ft i.e. 1,22 m
Construction
Fiberglass
Ballast Type
N/A
First Built
1976
Last Built
N/A
Maker
N/A
Design
Sparkman and Stephens
Make
N/A
Type
N/A
Fuel
N/A
Water
N/A
Headroom
N/A
Blue Water Value
-0,57
S.A. / Displ.
19,47
Bal. / Displ.
27,89
Displ. / Length
198,97
Comfort Ratio
13,95
Capsize Screening Formula
2,3
Hull Speed
5,78 kt
Pounds/Inch Immersion
542,31 pounds/inch
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