Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Fractional Sloop
LOA: 26.18 ft / 7.98 m
LWL: 21.00 ft / 6.40 m
S.A. (reported): 291.00 ft² / 27.03 m²
Beam: 9.19 ft / 2.80 m
Displacement: 4,343.00 lb / 1,970 kg
Ballast: 1,433.00 lb / 650 kg
Max Draft: 5.09 ft / 1.55 m
Construction: FG
First Built: 1979
Builder: Yamaha Motor Co. Ltd. (JAP)
Designer: Yamaha Design Team

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar
Model: 1GM
Type: Diesel
HP: 7.5
Fuel: 7 gals / 25 L

Accomodations

Water: 19 gals / 70 L
Headroom: 5.07 ft / 1.55 m

Sailboat Calculations

Definitions
S.A. / Displ.: 17.54
Bal. / Displ.: 33.00
Disp: / Len: 209.36
Comfort Ratio: 15.50
Capsize Screening Formula: 2.26
S#: 2.65
Hull Speed: 6.14 kn
Pounds/Inch Immersion: 689.57 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 28.54 ft / 8.70 m
J: 8.69 ft / 2.65 m
P: 29.86 ft / 9.10 m
E: 11.15 ft / 3.40 m
S.A. Fore: 124.01 ft² / 11.52 m²
S.A. Main: 166.47 ft² / 15.47 m²
S.A. Total (100% Fore + Main Triangles): 290.48 ft² / 26.99 m²
S.A./Displ. (calc.): 17.51
Est. Forestay Length: 29.83 ft / 9.09 m
Mast Height from DWL: 37.05 ft / 11.29 m

Sailboat Links

Builders: Yamaha
Associations: Quarter Ton Class
Download Boat Record:

Notes

Based on 1/4 ton prototype, 'Magician IV', winner of Int. 1/4 ton cup in 1978.
Major update in 1982 (shown here).
Available with a tall rig. Mast height above water: 39.08ft / 12.10m; SA (main + 100% fore) 330.6 sqft / 30.71 sqm