Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 9.14 m
LWL: 8.21 m
S.A. (reported): 44.04 m²
Beam: 3.10 m
Displacement: 4,173 kg
Ballast: 1,860 kg
Max Draft: 1.52 m
Construction: FG
First Built: 1976
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

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Sailboat Calculations

S.A. / Displ.: 17.33
Bal. / Displ.: 44.57
Disp: / Len: 210.53
Comfort Ratio: 23.25
Capsize Screening Formula: 1.94
S#: 2.62
Hull Speed: 6.95 kn
Pounds/Inch Immersion: 978.23 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 12.70 m
J: 4.11 m
P: 10.67 m
E: 3.35 m
S.A. Fore: 26.14 m²
S.A. Main: 17.88 m²
S.A. Total (100% Fore + Main Triangles): 44.02 m²
S.A./Displ. (calc.): 17.32
Est. Forestay Length: 13.35 m
Mast Height from DWL: 13.87 m

Sailboat Links

Designers: Ted Irwin
Builders: Irwin Yachts
Associations: Irwin Facebook Group
Irwin Yacht Owners
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Shoal draft version: 3.92'.
Keel/CB draft: BU:4.3' BD: 8.3'