RK 21
Hull
Swing keel with outboard rudder
Rigging
Masthead Sloop
LOA
21 ft i.e. 6.4 m
LWL
18.25 ft i.e. 5.56 m
Sail Area
206 ft² i.e. 19.14 m²
Beam
7.92 ft i.e. 2.41 m
Displacement
2000 lb i.e. 907 kg
Ballast
665 lb i.e. 302 kg
Max Draft
4.58 ft i.e. 1.4 m
Construction
Fiberglass
Ballast Type
N/A
First Built
1972
Last Built
N/A
Maker
N/A
Design
Peter Barrett
Make
N/A
Type
N/A
Fuel
N/A
Water
N/A
Headroom
N/A
Blue Water Value
-0.64
S.A. / Displ.
20.81
Bal. / Displ.
33.25
Displ. / Length
146.89
Comfort Ratio
10.29
Capsize Screening Formula
2.52
Hull Speed
5.72 kt
Pounds/Inch Immersion
516.46 pounds/inch
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