IRWIN 33 MKII

IRWIN 33 MKII

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 33.00 ft
LWL: 27.50 ft
S.A. (reported): 489.00 ft²
Beam: 11.17 ft
Displacement: 11,950.00 lb
Ballast: 4,200.00 lb
Max Draft: 5.50 ft
Construction: FG
First Built: 1976
Builder: Irwin Yachts (USA)
Designer: Ted Irwin

KLSC Leaderboard

KLSC Leaderboard

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

HELP
I: 42.00 ft
J: 14.00 ft
P: 35.50 ft
E: 11.00 ft
S.A. Fore: 294.00 ft²
S.A. Main: 195.25 ft²
S.A. Total (100% Fore + Main Triangles): 489.25 ft²
S.A./Displ. (calc.): 15.03
Est. Forestay Length: 44.27 ft
Mast Height from DWL: 46.25 ft

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.