IRWIN 1/2 TON MKII

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Lifting Keel
Rigging Type: Masthead Sloop
LOA: 32.00 ft / 9.75 m
LWL: 24.42 ft / 7.44 m
S.A. (reported): 412.00 ft² / 38.28 m²
Beam: 11.33 ft / 3.45 m
Displacement: 7,300.00 lb / 3,311 kg
Ballast: 3,500.00 lb / 1,588 kg
Max Draft: 6.50 ft / 1.98 m
Min Draft: 3.50 ft / 1.07 m
Construction: FG
Ballast Type: Lead
First Built: 1977
Builder: Irwin Yacht & Marine Corporation (USA)
Designer: Ted Irwin

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar
Type: Diesel
HP: 12
Fuel: 14 gals / 53 L

Accomodations

Water: 28 gals / 106 L

Sailboat Calculations

Definitions
S.A. / Displ.: 17.57
Bal. / Displ.: 47.95
Disp: / Len: 223.79
Comfort Ratio: 16.67
Capsize Screening Formula: 2.34
Hull Speed: 6.62 kn
Pounds/Inch Immersion: 988.60 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Designers: Ted Irwin
Builders: Irwin Yachts
Associations: Irwin Facebook Group
Irwin Yacht Owners
Related Sailboats: IRWIN 1/2 TON
Download Boat Record:

Notes

According to Irwin documentation, as compared to the first version, the MKII has a transom hung rudder, drop/dagger keel, (draft is the same) softer chine and broader beam aft.