Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Fractional Sloop
LOA: 23.00 ft
LWL: 18.80 ft
S.A. (reported): 271.00 ft²
Beam: 7.75 ft
Displacement: 2,400.00 lb
Ballast: 900.00 lb
Max Draft: 3.92 ft
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: 25.75 ft
J: 8.67 ft
P: 28.00 ft
E: 11.50 ft
S.A. Fore: 111.63 ft²
S.A. Main: 161.00 ft²
S.A. Total (100% Fore + Main Triangles): 272.63 ft²
S.A./Displ. (calc.): 24.39
Est. Forestay Length: 27.17 ft

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.