Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 32.50 ft / 9.91 m
LWL: 26.00 ft / 7.92 m
S.A. (reported): 462.00 ft² / 42.92 m²
Beam: 10.00 ft / 3.05 m
Displacement: 13,000.00 lb / 5,897 kg
Ballast: 4,000.00 lb / 1,814 kg
Max Draft: 3.92 ft / 1.19 m
Construction: FG
Ballast Type: Lead
First Built: 1972
Builder: Irwin Yacht & Marine Corp. (USA)
Designer: Ted Irwin

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
HP: 30

Sailboat Calculations

Definitions
S.A. / Displ.: 13.42
Bal. / Displ.: 30.77
Disp: / Len: 330.20
Comfort Ratio: 33.47
Capsize Screening Formula: 1.70
S#: 1.27
Hull Speed: 6.83 kn
Pounds/Inch Immersion: 929.01 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 39.00 ft / 11.89 m
J: 13.00 ft / 3.96 m
P: 32.00 ft / 9.75 m
E: 13.00 ft / 3.96 m
S.A. Fore: 253.50 ft² / 23.55 m²
S.A. Main: 208.00 ft² / 19.32 m²
S.A. Total (100% Fore + Main Triangles): 461.50 ft² / 42.87 m²
S.A./Displ. (calc.): 13.40
Est. Forestay Length: 41.11 ft / 12.53 m

Sailboat Links

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

Notes

Rig dimensions for ketch:
I: 39.00'
J: 13.00'
P: 32.00'
E: 11.75'
PY: 18.50'
EY: 7.75'