Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Triple Keel
Rigging Type: Masthead Sloop
LOA: 6.93 m
LWL: 5.69 m
S.A. (reported): 20.90 m²
Beam: 2.29 m
Displacement: 1,406 kg
Ballast: 524 kg
Max Draft: 0.69 m
Construction: GRP
Ballast Type: Iron
First Built: 1967
# Built: 1000
Builder: Offshore Yachts Ltd. (UK)
Designer: Alan Buchanan

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Auxiliary Power/Tanks (orig. equip.)

Make: Stuart-Turner
Type: Gas
Fuel: 38 L


Water: 76 L

Sailboat Calculations

S.A. / Displ.: 16.98
Bal. / Displ.: 37.26
Disp: / Len: 212.66
Comfort Ratio: 16.44
Capsize Screening Formula: 2.06
Hull Speed: 5.79 kn
Pounds/Inch Immersion: 500.32 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Designers: Alan Buchanan
Builders: Offshore Yachts Ltd. (UK)
Related Sailboats: CRYSTAL 23
Download Boat Record:


Fin or triple keel models.
Triple keel has cast Iron keel with steel plate fins.
Fin keel draft: 3.5'
Offered with a number of aux. power options.(gas or diesel)
Nearly the same is the earlier CRYSTAL 23.
Thanks to Halcyon 23 owner Rod Emberton for corrections and additional information.