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Finco Fabrication
Key Lime Sailing Club in Key Largo, FL
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ROCK 20
Hyde Sails Direct

Hull Type:  Fin with rudder on skeg Rig Type:  Masthead Sloop
LOA:  23.52' / 7.17m LWL:  19.52' / 5.95m
Beam:  7.38' / 2.25m Listed SA:  217 ft2 / 20.16 m2
Draft (max.)  3.94' / 1.20m Draft (min.)  
Displacement:  3858 lbs./ 1750 kgs. Ballast:  1323 lbs. / 600 kgs.
Sail Area/Disp.1:  14.15 Bal./Disp.:  34.29% Disp./Len.:  231.57
Designer:  Heinz-Jurgen Sass
Builder:  Birka Marine (FIN)
Construction:  FG Bal. type:  Iron
First Built:  1968 Last Built:  1975 # Built:  200
RIG AND SAIL PARTICULARS  KEY
I(IG):  25.60' / 7.80m J:  9.02' / 2.75m
P:  23.23' / 7.08m E:  8.73' / 2.66m
PY:   EY:  
ISP:   SPL/TPS:  
SA(Fore.):  115.46 ft2 / 10.73 m2 SA(Main):  101.40 ft2 / 9.42 m2
Sail Area (100% fore+main triangles):   216.85 ft2 / 20.15 m2
Sail Area/Disp.2:  14.14 Est. Forestay Length.:  27.14' / 8.27m
BUILDERS (past & present)
More about & boats built by:   Birka Marine (FIN)
DESIGNER
More about & boats designed by:   Heinz-Jurgen Sass
NOTES
Another version called the ROCK 24 is probably based on the same hull but with a different sail plan.
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