Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Swing Keel
Rigging Type: Masthead Sloop
LOA: 23.25 ft
LWL: 20.93 ft
S.A. (reported): 241.00 ft²
Beam: 8.00 ft
Displacement: 3,200.00 lb
Ballast: 1,033.00 lb
Max Draft: 5.33 ft
Min Draft: 2.36 ft
Construction: FG
Ballast Type: Lead
First Built: 1971
Last Built: 1976
# Built: 450
Builder: Grampian Marine Ltd. (CAN)
Designer: Alex McGruer

KLSC Leaderboard

KLSC Leaderboard


Water: 20 gals

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: 26.40 ft
J: 9.90 ft
P: 23.70 ft
E: 9.30 ft
S.A. Fore: 130.68 ft²
S.A. Main: 110.21 ft²
S.A. Total (100% Fore + Main Triangles): 240.89 ft²
S.A./Displ. (calc.): 17.80
Est. Forestay Length: 28.20 ft
Mast Height from DWL: 31.00 ft

Sailboat Links

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


The GRAMPIAN 23 was available with either a swing or fixed fin keel.