Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 7.90 m
LWL: 6.10 m
S.A. (reported): 26.94 m²
Beam: 2.75 m
Displacement: 2,100 kg
Ballast: 920 kg
Max Draft: 1.25 m
Construction: FG w/balsa cored deck
First Built: 1973
Last Built: 1988
# Built: 260
Builder: Grell Werft (GERMANY)
Designer: H. Streuer

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Farymann/Bukh
Type: Diesel


Water: 49 L

Sailboat Calculations

S.A. / Displ.: 16.75
Bal. / Displ.: 43.80
Disp: / Len: 257.98
Comfort Ratio: 17.54
Capsize Screening Formula: 2.17
S#: 2.02
Hull Speed: 5.99 kn
Pounds/Inch Immersion: 644.91 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 9.00 m
J: 3.33 m
P: 8.00 m
E: 2.75 m
S.A. Fore: 14.99 m²
S.A. Main: 11.00 m²
S.A. Total (100% Fore + Main Triangles): 25.99 m²
S.A./Displ. (calc.): 16.16
Est. Forestay Length: 9.60 m

Sailboat Links

Designers: Heribert Streuer
Builders: Sirius -Werft GmbH
Download Boat Record:


Fixed and swing keel models.
Swing keel draft: Max 1.32m/4.33 ft; Min .75m/2.46ft
Around 1980 the deck was revised and the coach roof was extended forward with a more traditional squared off appearance. Of these, 20 were built with a wood coach roof and teak decks.
A tall rig was also offered.