Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 33.00 ft / 10.06 m
LWL: 27.50 ft / 8.38 m
S.A. (reported): 514.00 ft² / 47.75 m²
Beam: 11.17 ft / 3.40 m
Displacement: 10,950.00 lb / 4,967 kg
Ballast: 4,200.00 lb / 1,905 kg
Max Draft: 5.50 ft / 1.68 m
Construction: FG
First Built: 1974
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
HP: 30
Fuel: 20 gals / 76 L

Accomodations

Water: 45 gals / 170 L

Sailboat Calculations

Definitions
S.A. / Displ.: 16.74
Bal. / Displ.: 38.36
Disp: / Len: 235.05
Comfort Ratio: 23.33
Capsize Screening Formula: 2.02
S#: 2.29
Hull Speed: 7.03 kn
Pounds/Inch Immersion: 1,097.57 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 44.00 ft / 13.41 m
J: 14.00 ft / 4.27 m
P: 37.50 ft / 11.43 m
E: 11.00 ft / 3.35 m
S.A. Fore: 308.00 ft² / 28.61 m²
S.A. Main: 206.25 ft² / 19.16 m²
S.A. Total (100% Fore + Main Triangles): 514.25 ft² / 47.78 m²
S.A./Displ. (calc.): 16.74
Est. Forestay Length: 46.17 ft / 14.07 m

Sailboat Links

Designers: Ted Irwin
Builders: Irwin Yachts
Associations: Irwin Facebook Group
Irwin Yacht Owners
Related Sailboats: IRWIN 33 MKII
Download Boat Record:

Notes

Shoal draft: 3.92'