Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 30.67 ft / 9.35 m
LWL: 25.26 ft / 7.70 m
S.A. (reported): 439.00 ft² / 40.78 m²
Beam: 10.66 ft / 3.25 m
Displacement: 8,360.00 lb / 3,792 kg
Ballast: 3,750.00 lb / 1,701 kg
Max Draft: 5.58 ft / 1.70 m
Construction: FG
First Built: 1980
Last Built: 1984
Builder: Dufour SA (FRA)
Designer: German Frers

Auxiliary Power/Tanks (orig. equip.)

Make: Volvo Penta
Model: MD5
Type: Diesel
HP: 8
Fuel: 12 gals / 45 L

Accomodations

Water: 28 gals / 106 L

Sailboat Calculations

Definitions
S.A. / Displ.: 17.11
Bal. / Displ.: 44.86
Disp: / Len: 231.56
Comfort Ratio: 20.55
Capsize Screening Formula: 2.10
S#: 2.37
Hull Speed: 6.73 kn
Pounds/Inch Immersion: 962.14 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 40.34 ft / 12.30 m
J: 12.07 ft / 3.68 m
P: 35.03 ft / 10.68 m
E: 11.15 ft / 3.40 m
S.A. Fore: 243.45 ft² / 22.62 m²
S.A. Main: 195.29 ft² / 18.14 m²
S.A. Total (100% Fore + Main Triangles): 438.74 ft² / 40.76 m²
S.A./Displ. (calc.): 17.10
Est. Forestay Length: 42.11 ft / 12.84 m

Sailboat Links

Designers: German Frers
Builders: Dufour Yachts (FRA)
Download Boat Record:

Notes

Also available with fractional rig and a shorter masthead rig.
Shoal draft: 4.43'.
Sold in US as DUFOUR 31 FRERS.

Fractional Rig:
I: 36.05'
J: 12.07'
P: 38.9'
E: 12.5'
Masthead Short:
I: 38.05'
J: 12.07'
P: 32.73'
E: 10.17'