Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 26.00 ft
LWL: 21.75 ft
S.A. (reported): 326.00 ft²
Beam: 8.33 ft
Displacement: 5,600.00 lb
Ballast: 2,600.00 lb
Max Draft: 4.25 ft
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: 20 gals
Headroom: 6.00 ft

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: 33.00 ft
J: 10.25 ft
P: 28.00 ft
E: 11.17 ft
S.A. Fore: 169.13 ft²
S.A. Main: 156.38 ft²
S.A. Total (100% Fore + Main Triangles): 325.51 ft²
S.A./Displ. (calc.): 16.56
Est. Forestay Length: 34.56 ft

Sailboat Links

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


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.