Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Centerboard Dinghy
Rigging Type: Fractional Sloop
LOA: 20.00 ft / 6.10 m
LWL: 19.67 ft / 6.00 m
S.A. (reported): 225.00 ft² / 20.90 m²
Beam: 6.67 ft / 2.03 m
Displacement: 830.00 lb / 376 kg
Max Draft: 5.60 ft / 1.71 m
Min Draft: 0.67 ft / 0.20 m
Construction: Wood or FG
First Built: 1951
Builder: Douglass & McCloud (USA)
Designer: Sandy Douglas

Sailboat Calculations

Definitions
S.A. / Displ.: 40.83
Disp: / Len: 48.69
Comfort Ratio: 5.18
Capsize Screening Formula: 2.84
S#: 9.47
Hull Speed: 5.94 kn
Pounds/Inch Immersion: 468.79 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 20.00 ft / 6.10 m
J: 5.91 ft / 1.80 m
P: 24.79 ft / 7.56 m
E: 13.67 ft / 4.17 m
S.A. Fore: 59.10 ft² / 5.49 m²
S.A. Main: 169.44 ft² / 15.74 m²
S.A. Total (100% Fore + Main Triangles): 228.54 ft² / 21.23 m²
S.A./Displ. (calc.): 41.47
Est. Forestay Length: 20.85 ft / 6.36 m

Sailboat Links

Notes

Spinnaker area: 300 sq.ft./27.87m2
1,010 hulls were built before Allen Boat Co. became the builder around 2009. Their first hull was numbered 2000. Allen Boat Co has completed hull #2006 (as of 2022), bringing the total hulls to 1,017.
Thanks to Perry Cameron for corrections.