Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/transom hung rudder
Rigging Type: Fractional Sloop
LOA: 8.00 m
LWL: 6.71 m
S.A. (reported): 31.40 m²
Beam: 2.51 m
Displacement: 1,315 kg
Ballast: 635 kg
Max Draft: 1.49 m
Construction: FG
First Built: 1992
Builder: J Boats Tillotson Pearson (USA)
Designer: Rod Johnstone

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

S.A. / Displ.: 26.66
Bal. / Displ.: 48.28
Disp: / Len: 121.59
Comfort Ratio: 11.58
Capsize Screening Formula: 2.32
S#: 5.20
Hull Speed: 6.29 kn
Pounds/Inch Immersion: 648.52 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 9.60 m
J: 2.90 m
P: 9.14 m
E: 3.81 m
ISP: 10.06 m
S.A. Fore: 13.90 m²
S.A. Main: 17.42 m²
S.A. Total (100% Fore + Main Triangles): 31.32 m²
S.A./Displ. (calc.): 26.59
Est. Forestay Length: 10.03 m

Sailboat Links

Designers: Rod Johnstone
Builders: J Boats
TPI Composites
Waterline Systems LLC
Associations: J/80 Class Website
Download Boat Record:


Photo courtesy of Adam Hunt.