Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Fractional Sloop
LOA: 7.01 m
LWL: 5.73 m
S.A. (reported): 25.18 m²
Beam: 2.36 m
Displacement: 1,089 kg
Ballast: 408 kg
Max Draft: 1.19 m
Construction: FG
First Built: 1985
# Built: 6
Builder: Ross Marine
Designer: Bruce Kirby

Sailboat Calculations

Definitions
S.A. / Displ.: 24.25
Bal. / Displ.: 37.50
Disp: / Len: 161.25
Comfort Ratio: 12.08
Capsize Screening Formula: 2.32
S#: 4.13
Hull Speed: 5.81 kn
Pounds/Inch Immersion: 520.60 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 7.85 m
J: 2.64 m
P: 8.53 m
E: 3.51 m
S.A. Fore: 10.37 m²
S.A. Main: 14.96 m²
S.A. Total (100% Fore + Main Triangles): 25.33 m²
S.A./Displ. (calc.): 24.39
Est. Forestay Length: 8.28 m

Sailboat Links

Designers: Bruce Kirby
Related Sailboats: BLAZER 23 (KIRBY)
Download Boat Record:

Notes

The KIRBY 23 is a cruising version of the SONAR (One-design). Similar to BLAZER 23.