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ALPA 21
Alpa 21 drawing on sailboatdata.com
Hyde Sails Direct

Hull Type:  Fin w/transom hung rudder Rig Type:  Masthead Sloop
LOA:  21.25' / 6.48m LWL:  18.60' / 5.67m
Beam:  8.16' / 2.49m Listed SA:  245 ft2 / 22.76 m2
Draft (max.)  4.00' / 1.22m Draft (min.)  
Displacement:  2868 lbs./ 1301 kgs. Ballast:  800 lbs. / 363 kgs.
Sail Area/Disp.1:  19.47 Bal./Disp.:  27.90% Disp./Len.:  198.97
Designer:  Sparkman & Stephens
Builder:  Alpa (ITA)
Construction:  FG Bal. type:  
First Built:  1976 Last Built:   # Built:  
RIG AND SAIL PARTICULARS  KEY
I(IG):  30.00' / 9.14m J:  8.55' / 2.61m
P:  26.00' / 7.92m E:  9.00' / 2.74m
PY:   EY:  
ISP:   SPL/TPS:  
SA(Fore.):  128.25 ft2 / 11.91 m2 SA(Main):  117.00 ft2 / 10.87 m2
Sail Area (100% fore+main triangles):   245.25 ft2 / 22.78 m2
Sail Area/Disp.2:  19.49 Est. Forestay Length.:  31.19' / 9.51m
BUILDERS (past & present)
More about & boats built by:   Alpa Yachts (ITA)
DESIGNER
More about & boats designed by:    Sparkman & Stephens
NOTES
S&S design #2204.
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