Bird (SF Bay)

1923
Designers
John G. Alden
Samuel Crocker
Builder
Madden & Lewis (USA)
Associations
?
# Built
30
Hull Type
Long Keel
Construction
Wood

Dimensions

Length Overall
30 1 / 9.2 m
Waterline Length
24 8 / 7.5 m
Beam
7 8 / 2.3 m
Draft
5 2 / 1.6 m
Displacement
9,000 lbs / 4,082 kg
Ballast
4,600 lbs / 2,087 kg
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
408 ft2 / 37.9 m2
Total Sail Area
424.2 ft2 / 39.4 m2
Mainsail
Sail Area
328 ft2 / 30.5 m2
P
31 11 / 9.8 m
E
20 6 / 6.3 m
Mast Height
?
Foresail
Sail Area
96.2 ft2 / 8.9 m2
I
20 2 / 6.2 m
J
9 6 / 2.9 m
Forestay Length
22 4 / 6.8 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.66 knots
Sail Area/Displacement
15.09
under powered
Ballast/Displacement
51.11
stiffer, more powerful
Displacement/Length
267.6
moderate
Comfort Ratio
34.84
moderate bluewater cruising boat
Capsize Screening
1.47
better suited for ocean passages

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)


For Sale

Have a sailboat to sell?
List it for free and it will show up here.

Subscribe

Get occassional updates about new features or featured sailboats.
You can opt out or contact us any time.