Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 7.92 m
LWL: 6.63 m
S.A. (reported): 30.29 m²
Beam: 2.54 m
Displacement: 2,540 kg
Ballast: 1,179 kg
Max Draft: 1.30 m
Construction: FG w/cored deck
First Built: 1967
Last Built: 1977
# Built: 980
Builder: Grampian Marine Ltd. (CAN)
Designer: Alex McGruer

KLSC Leaderboard

KLSC Leaderboard


Water: 76 L
Headroom: 1.83 m

Sailboat Calculations

S.A. / Displ.: 16.59
Bal. / Displ.: 46.43
Disp: / Len: 242.98
Comfort Ratio: 22.32
Capsize Screening Formula: 1.88
S#: 2.20
Hull Speed: 6.25 kn
Pounds/Inch Immersion: 647.37 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 10.06 m
J: 3.12 m
P: 8.53 m
E: 3.40 m
S.A. Fore: 15.71 m²
S.A. Main: 14.53 m²
S.A. Total (100% Fore + Main Triangles): 30.24 m²
S.A./Displ. (calc.): 16.56
Est. Forestay Length: 10.53 m

Sailboat Links

Designers: Alex McGruer
Builders: Grampian Marine
Associations: Grampian Owners Marina
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Grampians most popular model and one the most successful boats of this size built in Canada. A keel/cb version was also produced in small numbers. Rarer still is a raised deck version, called the DISCOVERY 7.9, introduced in 1979.
Grampian offered a Palmer (gas) inboard as an option.
Displacement and ballast shown here are as stated for keel version on introductory brochure.

Photo courtesy Adam Hunt.