BIRD (SF BAY)

BIRD (SF BAY) photo BIRD (SF BAY) drawing

Sailboat Specifications


Hull Type:
Long Keel
Rigging Type:
Fractional Sloop
LOA:
30.08 ft / 9.17 m
LWL:
24.67 ft / 7.52 m
Beam:
7.67 ft / 2.34 m
S.A. (reported):
408.00 ft2 / 37.90 m2
Draft (max):
5.25 ft / 1.60 m
Draft (min):
Displacement:
9,000 lb / 4,082 kg
Ballast:
4,600 lb / 2,087 kg
S.A./Disp.:
15.14
Bal./Disp.:
51.11
Disp./Len.:
267.60
Construction:
Wood
Ballast Type:
First Built:
1923
Last Built:
# Built:
30
Builder:
Madden & Lewis (USA)
Designer:
Fred C.Brewer / Alden & Associates
Website:

Sailboat Calculations

S.A./Disp.:
15.14
Bal./Disp.:
51.11
Disp./Len.:
267.60
Comfort Ratio:
35.05
Capsize Screening Formula:
1.48

Rig and Sail Particulars

I:
20.25 ft / 6.17 m
J:
9.50 ft / 2.90 m
P:
32.00 ft / 9.75 m
E:
20.50 ft / 6.25 m
SPL/TPS:
ISP:
S.A. Fore:
96.19 ft2 / 8.94 m2
S.A. Main:
328.00 ft2 / 30.47 m2
S.A. Total (100% Fore + Main Triangles)
424.19 ft2 / 39.41 m2
S.A./Disp. (calc.):
15.74
Est. Forestay Len.:
22.37 ft / 6.82 m

Sailboat Links

Notes

Fred C. Brewer, a naval architect from Sausalito, California did the preliminary design work with Sam Crocker of Alden Associates, drawing the final plans. (Alden design #157) Originally called the San Francisco 'S' class, it became known as the BIRD when some of the first boats were given bird names. A number of the original boats still exist and race as a fleet to this day on San Francisco Bay. (2008)



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