Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/transom hung rudder
Rigging Type: Masthead Sloop
LOA: 27.92 ft / 8.51 m
LWL: 25.00 ft / 7.62 m
S.A. (reported): 350.00 ft² / 32.52 m²
Beam: 9.33 ft / 2.84 m
Displacement: 9,000.00 lb / 4,082 kg
Ballast: 2,727.00 lb / 1,237 kg
Max Draft: 5.33 ft / 1.62 m
Construction: FG
First Built: 1975
# Built: 120
Builder: Dave Blundell/Export Yachts (NZ)
Designer: Laurie Davidson

Auxiliary Power/Tanks (orig. equip.)

Make: Bukh
Type: Diesel

Sailboat Calculations

Definitions
S.A. / Displ.: 12.99
Bal. / Displ.: 30.30
Disp: / Len: 257.14
Comfort Ratio: 27.45
Capsize Screening Formula: 1.80
S#: 1.74
Hull Speed: 6.70 kn
Pounds/Inch Immersion: 833.43 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 35.00 ft / 10.67 m
J: 11.50 ft / 3.51 m
P: 30.00 ft / 9.14 m
E: 10.50 ft / 3.20 m
S.A. Fore: 201.25 ft² / 18.70 m²
S.A. Main: 157.50 ft² / 14.63 m²
S.A. Total (100% Fore + Main Triangles): 358.75 ft² / 33.33 m²
S.A./Displ. (calc.): 13.31
Est. Forestay Length: 36.84 ft / 11.23 m

Sailboat Links

Designers: Laurie Davidson
Related Sailboats: CAVALIER 28
Download Boat Record:

Notes

Amateur builders finished off nearly all DAVIDSON 28s. Later became the CAVALIER 28 (mostly built in Australia).