Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 28.00 ft / 8.53 m
LWL: 22.50 ft / 6.86 m
S.A. (reported): 352.00 ft² / 32.70 m²
Beam: 9.00 ft / 2.74 m
Displacement: 6,000.00 lb / 2,722 kg
Ballast: 2,200.00 lb / 998 kg
Max Draft: 4.50 ft / 1.37 m
Construction: FG
Ballast Type: Lead
First Built: 1963
Last Built: 1969
# Built: 347
Builder: Jensen Marine (USA)
Designer: C. W. Lapworth

Auxiliary Power/Tanks (orig. equip.)

Type: Gas
Fuel: 18 gals / 68 L

Accomodations

Water: 28 gals / 106 L

Sailboat Calculations

Definitions
S.A. / Displ.: 17.11
Bal. / Displ.: 36.67
Disp: / Len: 235.16
Comfort Ratio: 20.57
Capsize Screening Formula: 1.98
S#: 2.33
Hull Speed: 6.36 kn
Pounds/Inch Immersion: 723.55 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 33.00 ft / 10.06 m
J: 11.40 ft / 3.47 m
P: 28.00 ft / 8.53 m
E: 11.70 ft / 3.57 m
S.A. Fore: 188.10 ft² / 17.48 m²
S.A. Main: 163.80 ft² / 15.22 m²
S.A. Total (100% Fore + Main Triangles): 351.90 ft² / 32.69 m²
S.A./Displ. (calc.): 17.10
Est. Forestay Length: 34.91 ft / 10.64 m

Sailboat Links

Designers: C. William Lapworth
Builders: Calgan Marine Ltd. (CAN)
Jensen Marine/Cal Boats
Download Boat Record:

Notes

One of the first CAL's and initially called the CALIFORNIA 28.
Universal Atomic 4 gas inboard w/V-Drive opt.
From builder literature. (1964)