Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 7.72 m
LWL: 5.89 m
S.A. (reported): 22.11 m²
Beam: 2.54 m
Displacement: 1,900 kg
Ballast: 816 kg
Max Draft: 1.47 m
Construction: FG
First Built: 1972
Builder: Arme Batt (NOR)/Solna Marin (SWE)
Designer: Peter Norlin

Auxiliary Power/Tanks (orig. equip.)

Make: Vire
Type: Gas
HP: 7

Sailboat Calculations

S.A. / Displ.: 14.69
Bal. / Displ.: 42.97
Disp: / Len: 258.92
Comfort Ratio: 18.19
Capsize Screening Formula: 2.07
S#: 1.87
Hull Speed: 5.89 kn
Pounds/Inch Immersion: 575.34 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 9.25 m
J: 2.75 m
P: 8.35 m
E: 2.25 m
S.A. Fore: 12.72 m²
S.A. Main: 9.39 m²
S.A. Total (100% Fore + Main Triangles): 22.11 m²
S.A./Displ. (calc.): 14.69
Est. Forestay Length: 9.65 m

Sailboat Links

Designers: Peter Norlin
Associations: Quarter Ton Class
Related Sailboats: QUARTER TON CLASS
Download Boat Record:


Originally called IW-26, built in Sweden. Also called SCAMPI 26.
Last builder: Avaldaplast of Sweden.
Designed as IOR 1/4 ton.
(2nd place 1972 1/4 ton cup at La Rochelle, France).