Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Twin Keel
Rigging Type: Masthead Sloop
LOA: 7.01 m
LWL: 5.59 m
S.A. (reported): 22.76 m²
Beam: 2.67 m
Displacement: 1,928 kg
Ballast: 907 kg
Max Draft: 0.91 m
Construction: FG
First Built: 1980
# Built: 50
Builder: Cobra Yachts (UK)
Designer: David Feltham

Accomodations

Headroom: 1.75 m

Sailboat Calculations

Definitions
S.A. / Displ.: 14.98
Bal. / Displ.: 47.06
Disp: / Len: 308.07
Comfort Ratio: 18.51
Capsize Screening Formula: 2.16
S#: 1.54
Hull Speed: 5.74 kn
Pounds/Inch Immersion: 573.08 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 9.22 m
J: 2.90 m
P: 7.92 m
E: 2.44 m
S.A. Fore: 13.35 m²
S.A. Main: 9.66 m²
S.A. Total (100% Fore + Main Triangles): 23.01 m²
S.A./Displ. (calc.): 15.15
Est. Forestay Length: 9.67 m

Sailboat Links

Designers: David Feltham
Builders: Cobra Yachts (UK)
Associations: Cobra and Seawolf Owners Association
Download Boat Record:

Notes

Available with a fin keel. draft: 1.22m / 4 ft.
Reported sail area = main + #2 Genoa.
Sail area:
Main: 105 ft² / 9.76 m²
#1 Genoa: 190 ft² / 17.67 m²
#2 Genoa: 140 ft² / 13.02 m²
Working Jib; 100 ft² / 9.30 m²
Storm Jib: 50 ft² / 4.65 m²
Spinnaker: 430 ft² / 40 m²

Many were completed from kits.

Thanks to Cobra 700 owner Chaz Richards for sending additional information.