Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Fractional Sloop
LOA: 10.82 m
LWL: 8.97 m
S.A. (reported): 53.14 m²
Beam: 3.45 m
Displacement: 5,490 kg
Max Draft: 1.92 m
Construction: FG
Ballast Type: Lead
First Built: 1979
Last Built: 1981
# Built: 6
Builder: Production Yachts Ltd
Designer: David Thomas

Auxiliary Power/Tanks (orig. equip.)

Make: Volvo
Model: MD20
Type: Diesel
HP: 25
Fuel: 61 L

Sailboat Calculations

Definitions
S.A. / Displ.: 17.42
Disp: / Len: 212.19
Comfort Ratio: 23.61
Capsize Screening Formula: 1.98
S#: 2.61
Hull Speed: 7.27 kn
Pounds/Inch Immersion: 1,191.02 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 11.38 m
J: 3.73 m
P: 13.10 m
E: 4.87 m
S.A. Fore: 21.24 m²
S.A. Main: 31.90 m²
S.A. Total (100% Fore + Main Triangles): 53.14 m²
S.A./Displ. (calc.): 17.42
Est. Forestay Length: 11.98 m

Sailboat Links

Designers: David Thomas
Builders: Robertson and Sons Ltd.
Download Boat Record:

Notes

Derived for an IOR 1 ton design.
Called the "Big Bolero"
Rig measurements from IOR.
Thanks to Ashley James for sending additional information.