Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/transom hung rudder
Rigging Type: Fractional Sloop
LOA: 21.65 ft / 6.60 m
LWL: 18.70 ft / 5.70 m
S.A. (reported): 262.64 ft² / 24.40 m²
Beam: 8.20 ft / 2.50 m
Displacement: 3,924.23 lb / 1,780 kg
Ballast: 1,962.11 lb / 890 kg
Max Draft: 49.21 ft / 15.00 m
Construction: FG
First Built: 1977
Last Built: 1980
# Built: 185
Builder: Bjørn Abrahamsen, Hvaler, Norway (1977)
Designer: Petter G. Lie

Auxiliary Power/Tanks (orig. equip.)

Make: Bukh
Type: Diesel
HP: 8
Fuel: 8 gals / 30 L

Accomodations

Water: 11 gals / 40 L
Headroom: 6.23 ft / 1.90 m

Sailboat Calculations

Definitions
S.A. / Displ.: 16.94
Bal. / Displ.: 50.00
Disp: / Len: 267.91
Comfort Ratio: 18.77
Capsize Screening Formula: 2.08
Hull Speed: 5.79 kn
Pounds/Inch Immersion: 547.90 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

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Notes

Other builders:
- Olsson & Söner, Smögen, Sweden (1978-1979)
- Ciplast, Svendborg, Denmark (autumn 1979)
- Ulefoss, Norway (1980)
Sail area:
-Main: 11 m² / 118.4 ft²
-#1 Genoa: 13.4 m² / 144.24 ft²
-#2 Genoa: 10 m² / 107.64 ft²
-#3 Genoa: 7 m² / 75.35 ft²
-Storm jib: 3 m² / 32.3 ft²
-Spinnaker: 28 m² / 301.39 ft²
SA is for mainsail + #1 genoa
Headroom applies to the galley area
Most were sold as 3/4 kits to be finished by the buyer
A few boats had a lower ballast of 760-780 kg (displacement of 1650-1670 kg)
MkII (from 1978) had single laminate fiberglass at all through-hulls