Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 29.75 ft / 9.07 m
LWL: 25.50 ft / 7.77 m
S.A. (reported): 425.00 ft² / 39.48 m²
Beam: 9.50 ft / 2.90 m
Displacement: 8,600.00 lb / 3,901 kg
Ballast: 3,870.00 lb / 1,755 kg
Max Draft: 4.67 ft / 1.42 m
Construction: FG
First Built: 1969
Last Built: 1977
# Built: 400
Builder: Grampian Marine Ltd. (CAN)
Designer: Alex McGruer

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
Fuel: 10 gals / 38 L

Accomodations

Water: 15 gals / 57 L

Sailboat Calculations

Definitions
S.A. / Displ.: 16.25
Bal. / Displ.: 45.00
Disp: / Len: 231.54
Comfort Ratio: 24.74
Capsize Screening Formula: 1.86
S#: 2.13
Hull Speed: 6.77 kn
Pounds/Inch Immersion: 865.59 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 36.90 ft / 11.25 m
J: 11.00 ft / 3.35 m
P: 31.00 ft / 9.45 m
E: 12.00 ft / 3.66 m
S.A. Fore: 202.95 ft² / 18.85 m²
S.A. Main: 186.00 ft² / 17.28 m²
S.A. Total (100% Fore + Main Triangles): 388.95 ft² / 36.13 m²
S.A./Displ. (calc.): 14.87
Est. Forestay Length: 38.50 ft / 11.73 m

Sailboat Links

Designers: Alex McGruer
Builders: Grampian Marine
Associations: Grampian Owners Marina
Download Boat Record:

Notes

Keel/CB version:
Draft (max.) 7.00' / 2.13m
Draft (min.) 3.00' / 0.91m

Tall mast: (shown in drawing)
I: 40.00' / 12.19m
J: 11.50' / 3.51m
P: 35.50' / 10.82m
E: 11.00' / 3.35m
Cutter rig w/bowsprit available as an option (1974).

Photo courtesy Adam Hunt