Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Swing Keel
Rigging Type: Masthead Sloop
LOA: 7.09 m
LWL: 6.38 m
S.A. (reported): 22.39 m²
Beam: 2.44 m
Displacement: 1,451 kg
Ballast: 469 kg
Max Draft: 1.62 m
Min Draft: 0.72 m
Construction: FG
Ballast Type: Lead
First Built: 1971
Last Built: 1976
# Built: 450
Builder: Grampian Marine Ltd. (CAN)
Designer: Alex McGruer

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Water: 76 L

Sailboat Calculations

S.A. / Displ.: 17.80
Bal. / Displ.: 32.28
Disp: / Len: 155.81
Comfort Ratio: 14.33
Capsize Screening Formula: 2.17
S#: 3.40
Hull Speed: 6.13 kn
Pounds/Inch Immersion: 598.28 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 8.05 m
J: 3.02 m
P: 7.22 m
E: 2.83 m
S.A. Fore: 12.14 m²
S.A. Main: 10.24 m²
S.A. Total (100% Fore + Main Triangles): 22.38 m²
S.A./Displ. (calc.): 17.80
Est. Forestay Length: 8.60 m
Mast Height from DWL: 9.45 m

Sailboat Links

Designers: Alex McGruer
Builders: Grampian Marine
Associations: Grampian Owners Marina
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The GRAMPIAN 23 was available with either a swing or fixed fin keel.