Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 12.80 m
LWL: 10.69 m
S.A. (reported): 83.52 m²
Beam: 4.06 m
Displacement: 13,154 kg
Ballast: 5,443 kg
Max Draft: 1.37 m
Construction: FG
Ballast Type: Lead
First Built: 1976
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

Auxiliary Power/Tanks (orig. equip.)

Type: Diesel
HP: 60
Fuel: 416 L

Accomodations

Water: 852 L

Sailboat Calculations

Definitions
S.A. / Displ.: 15.30
Bal. / Displ.: 41.38
Disp: / Len: 299.90
Comfort Ratio: 38.32
Capsize Screening Formula: 1.74
S#: 1.61
Hull Speed: 7.94 kn
Pounds/Inch Immersion: 1,670.84 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 15.24 m
J: 5.79 m
P: 13.26 m
E: 5.94 m
S.A. Fore: 44.13 m²
S.A. Main: 39.40 m²
S.A. Total (100% Fore + Main Triangles): 83.53 m²
S.A./Displ. (calc.): 15.30
Est. Forestay Length: 16.30 m

Sailboat Links

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

Notes

Available as sloop or ketch.
KETCH RIG:
I: 50.0'
J: 19.0'
P: 43.5'
E: 15.75'
PY: 29.0'
Tot. SA: 959.0 sq.ft./89.09 m2