Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Cutter
LOA: 37.00 ft
LWL: 30.00 ft
S.A. (reported): 630.00 ft²
Beam: 11.50 ft
Displacement: 20,000.00 lb
Ballast: 7,800.00 lb
Max Draft: 4.00 ft
Construction: FG
First Built: 1976
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

Auxiliary Power/Tanks (orig. equip.)

Make: Perkins
Model: 4-108
Type: Diesel
Fuel: 85 gals

Accomodations

Water: 180 gals

Sailboat Calculations

Definitions
S.A. / Displ.: 13.73
Bal. / Displ.: 39.00
Disp: / Len: 330.69
Comfort Ratio: 37.23
Capsize Screening Formula: 1.70
S#: 1.29
Hull Speed: 7.34 kn
Pounds/Inch Immersion: 1,232.72 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 42.00 ft
J: 17.60 ft
P: 35.60 ft
E: 14.60 ft
S.A. Fore: 369.60 ft²
S.A. Main: 259.88 ft²
S.A. Total (100% Fore + Main Triangles): 629.48 ft²
S.A./Displ. (calc.): 13.72
Est. Forestay Length: 45.54 ft
Mast Height from DWL: 46.00 ft

Sailboat Links

Designers: Ted Irwin
Builders: Irwin Yachts
Associations: Irwin Facebook Group
Irwin Yacht Owners
Download Boat Record:

Notes

Available with keel centerboard and staysail ketch rig.
Keel/CB: Draft-BU: 4.0'/BD: 8.0'
RIG DIMENSION FOR KETCH:
I: 42.0'
J: 17.6'
P: 35.6'
E: 12.9'
PY: 22.16'
EY: 8.33'