Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Long Keel
Rigging Type: Fractional Sloop
LOA: 7.34 m
LWL: 5.84 m
Beam: 2.13 m
Displacement: 1,814 kg
Max Draft: 1.09 m
Construction: Wood Planked
First Built: 1944
Builder: Various
Designer: Alvin Mason

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

Disp: / Len: 253.88
Comfort Ratio: 22.42
Capsize Screening Formula: 1.77
S#: 2.19
Hull Speed: 5.87 kn
Pounds/Inch Immersion: 479.23 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 6.86 m
J: 2.59 m
P: 9.14 m
E: 3.66 m
S.A. Fore: 8.88 m²
S.A. Main: 16.72 m²
S.A. Total (100% Fore + Main Triangles): 25.61 m²
S.A./Displ. (calc.): 17.55
Est. Forestay Length: 7.33 m

Sailboat Links

Designers: Alvin Mason
Download Boat Record:


The design appeared in Rudder Magazine (1944) and became one of Masons most popular designs.