Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 27.00 ft
LWL: 20.00 ft
S.A. (reported): 273.00 ft²
Beam: 8.70 ft
Displacement: 3,740.00 lb
Max Draft: 4.89 ft
Construction: FG
First Built: 1975
Builder: Sjaelland Rund (DEN)
Designer: Elvstrøm & Kjærulff

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

S.A. / Displ.: 18.18
Disp: / Len: 208.71
Comfort Ratio: 14.66
Capsize Screening Formula: 2.24
S#: 2.74
Hull Speed: 5.99 kn
Pounds/Inch Immersion: 621.72 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 31.20 ft
J: 9.80 ft
P: 27.60 ft
E: 8.70 ft
S.A. Fore: 152.88 ft²
S.A. Main: 120.06 ft²
S.A. Total (100% Fore + Main Triangles): 272.94 ft²
S.A./Displ. (calc.): 18.17
Est. Forestay Length: 32.70 ft

Sailboat Links

Designers: Jan Kjærulff
Paul Elvström
Associations: Quarter Ton Class
Related Sailboats: BIANCA 26
Download Boat Record:


A flush deck racer intended for competition under the IOR 1/4 ton rule.
#1 'Aphrodite', #2 'Go', 'Another'Go',.
Became prototype for BIANCA 26, BIANCA 28.
A later version was built in Canada called the WHITBY 27.