IRWIN 33 MKII

IRWIN 33 MKII

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 10.06 m
LWL: 8.38 m
S.A. (reported): 45.43 m²
Beam: 3.40 m
Displacement: 5,420 kg
Ballast: 1,905 kg
Max Draft: 1.68 m
Construction: FG
First Built: 1976
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

KLSC Leaderboard

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Sailboat Calculations

Definitions
S.A. / Displ.: 15.02
Bal. / Displ.: 35.15
Disp: / Len: 256.52
Comfort Ratio: 25.46
Capsize Screening Formula: 1.96
S#: 1.92
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

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I: 12.80 m
J: 4.27 m
P: 10.82 m
E: 3.35 m
S.A. Fore: 27.31 m²
S.A. Main: 18.14 m²
S.A. Total (100% Fore + Main Triangles): 45.45 m²
S.A./Displ. (calc.): 15.03
Est. Forestay Length: 13.49 m
Mast Height from DWL: 14.10 m

Sailboat Links

Designers: Ted Irwin
Builders: Irwin Yachts
Associations: IOR 3/4 ton
Irwin Facebook Group
Irwin Yacht Owners
Download Boat Record:

Notes

Shoal draft: 3.92'
Keel/cb: BU: 4.0' BD: 8.0'.
Some were raced at the IOR 3/4 ton level.