Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 25.00 ft
LWL: 21.00 ft
S.A. (reported): 300.00 ft²
Beam: 7.75 ft
Displacement: 5,200.00 lb
Ballast: 2,399.00 lb
Max Draft: 4.00 ft
Construction: FG
Ballast Type: Lead
First Built: 1970
Builder: A. V. Robertson Ltd. (UK)
Designer: Leslie H. James

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Perkins
Model: 4-107
Type: Diesel
HP: 22
Fuel: 10 gals


Water: 20 gals

Sailboat Calculations

S.A. / Displ.: 16.04
Bal. / Displ.: 46.13
Disp: / Len: 250.67
Comfort Ratio: 23.66
Capsize Screening Formula: 1.79
Hull Speed: 6.14 kn
Pounds/Inch Immersion: 581.52 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Builders: Robertson and Sons Ltd.
Tyler Boat Co. Ltd. (UK)
Related Sailboats: SEARIDER 25
Download Boat Record:


A twin (bilge) keel version was available. (draft: 3')
Originally the SEARIDER 25.