MACGREGOR 21

MACGREGOR 21 drawing

Sailboat Specifications


Hull Type:
Swing Keel
Rigging Type:
Masthead Sloop
LOA:
21.00 ft
LWL:
18.50 ft
Beam:
6.83 ft
S.A. (reported):
206.00 ft2
Draft (max):
5.50 ft
Draft (min):
1.00 ft
Displacement:
1,175 lb
Ballast:
400 lb
S.A./Disp.:
29.66
Bal./Disp.:
34.04
Disp./Len.:
82.85
Construction:
FG
Ballast Type:
First Built:
1979
Last Built:
1985
# Built:
Builder:
Macgregor Yacht Corp. (USA)
Designer:
Roger Macgregor
Website:

Sailboat Calculations

S.A./Disp.:
29.66
Bal./Disp.:
34.04
Disp./Len.:
82.85
Comfort Ratio:
7.29
Capsize Screening Formula:
2.59

Rig and Sail Particulars

I:
24.30 ft
J:
7.50 ft
P:
23.00 ft
E:
10.00 ft
SPL/TPS:
ISP:
S.A. Fore:
91.13 ft2
S.A. Main:
115.00 ft2
S.A. Total (100% Fore + Main Triangles)
206.13 ft2
S.A./Disp. (calc.):
29.68
Est. Forestay Len.:
25.43 ft

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