ROCK 20 Sailboat Data
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 23.52 ft / 7.17 m
LWL: 19.52 ft / 5.95 m
S.A. (reported): 217.00 ft² / 20.16 m²
Beam: 7.38 ft / 2.25 m
Displacement: 3,858.00 lb / 1,750 kg
Ballast: 1,323.00 lb / 600 kg
Max Draft: 3.94 ft / 1.20 m
Construction: FG
Ballast Type: Iron
First Built: 1968
Last Built: 1975
# Built: 200
Builder: Birka Marine (FIN)
Designer: Heinz-Jurgen Sass
Other Data
Information from sailboatdata.com.
Hull Speed: 5.92 kn
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