Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin Keel
Rigging Type: Fractional Sloop
LOA: 25.42 ft / 7.75 m
LWL: 19.00 ft / 5.79 m
S.A. (reported): 200.00 ft² / 18.58 m²
Beam: 5.50 ft / 1.68 m
Displacement: 2,253.00 lb / 1,022 kg
Ballast: 1,340.00 lb / 608 kg
Max Draft: 3.42 ft / 1.04 m
Construction: Wood/FG
First Built: 1948
# Built: 90
Designer: Tom Thornycroft

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

Definitions
S.A. / Displ.: 18.66
Bal. / Displ.: 59.48
Disp: / Len: 146.64
Comfort Ratio: 17.16
Capsize Screening Formula: 1.68
S#: 3.92
Hull Speed: 5.84 kn
Pounds/Inch Immersion: 373.39 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 21.00 ft / 6.40 m
J: 7.28 ft / 2.22 m
P: 27.00 ft / 8.23 m
E: 10.70 ft / 3.26 m
S.A. Fore: 76.44 ft² / 7.10 m²
S.A. Main: 144.45 ft² / 13.42 m²
S.A. Total (100% Fore + Main Triangles): 220.89 ft² / 20.52 m²
S.A./Displ. (calc.): 20.61
Est. Forestay Length: 22.23 ft / 6.78 m

Sailboat Links

Notes

Designed for, and used in the 1948 Olympic Games, the SWALLOW, is still raced in a number of fleets in the UK. New boats have been built of fiberglass while the surviving wood ones are reported to have remained competitive.
A modernized rig was approved in 2010.