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IRWIN 1/2 TON MKII
IRWIN 1/2 TON MKII
Masthead Sloop
• Lifting Keel
• Built 1977
Dimensions
LOA 32 ft
LWL 24.42 ft
Beam 11.33 ft
Max Draft 6.5 ft
Min Draft 3.5 ft
Displacement 7,300 lbs
Ballast 3,500 lbs
Performance Ratios
Capsize Ratio ⓘ
2.34
(use caution offshore)
SA/D Ratio ⓘ
17.5
D/L Ratio ⓘ
224
Ballast Ratio ⓘ
47.9%
Sail Plan
Sail Area 412 sq ft
Construction
Hull Type Lifting Keel
Rig Type Masthead Sloop
Hull Material FG
Ballast Type Lead
Production
First Built 1977
Last Built —
Number Built —
Engine & Accommodations
Engine Make Yanmar
Power 12 hp
Engine Type Diesel
Water 28 gal
Fuel 14 gal
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.