Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Cutter
LOA: 37.00 ft / 11.28 m
LWL: 30.00 ft / 9.14 m
S.A. (reported): 627.00 ft² / 58.25 m²
Beam: 11.50 ft / 3.51 m
Displacement: 20,000.00 lb / 9,072 kg
Ballast: 6,700.00 lb / 3,039 kg
Max Draft: 5.50 ft / 1.68 m
Construction: FG
First Built: 1977
Last Built: 1982
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

Auxiliary Power/Tanks (orig. equip.)

Make: Perkins
Type: Diesel
Fuel: 55 gals / 208 L

Accomodations

Water: 187 gals / 708 L

Sailboat Calculations

Definitions
S.A. / Displ.: 13.67
Bal. / Displ.: 33.50
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 / 12.80 m
J: 17.50 ft / 5.33 m
P: 35.60 ft / 10.85 m
E: 14.60 ft / 4.45 m
S.A. Fore: 367.50 ft² / 34.14 m²
S.A. Main: 259.88 ft² / 24.14 m²
S.A. Total (100% Fore + Main Triangles): 627.38 ft² / 58.29 m²
S.A./Displ. (calc.): 13.68
Est. Forestay Length: 45.50 ft / 13.87 m

Sailboat Links

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

Notes

Shoal draft: 4.0'
Ketch Rig:
I: 42.0'
J: 17.5'
P: 35.6'
E: 12.5'
PY: 22.16'
EY: 8.33'