- Length
- 12.8 m
- Beam
- 4.06 m
- Draft
- 1.37 m
- Sail area
- 83.52 m²
Specifications
Dimensions & displacement6
- Length overall
- 12.8 m
- Waterline length
- 10.69 m
- Beam
- 4.06 m
- Draft
- 1.37 m
- Displacement
- 13,154 kg
- Ballast
- 5,443 kg
Sails & rig9
- Rig type
- Sloop, masthead rig
- Sail area
- 83.52 m²
- Mainsail area
- 39.4 m²
- Foresail area
- 44.13 m²
- Foretriangle height (I)
- 15.24 m
- Foretriangle base (J)
- 5.79 m
- Mainsail luff (P)
- 13.26 m
- Mainsail foot (E)
- 5.94 m
- Forestay length
- 16.3 m
Engine & propulsion2
- Engine power
- 60 hp
- Engine type
- Diesel
Hull & construction3
- Hull material
- Fibreglass
- Keel type
- Fin keel, skeg-hung rudder
- Ballast material
- Lead
Tanks2
- Fuel tank
- 416 L
- Fresh water tank
- 852 L
Production & design2
- Production started
- 1976
- Designer
- Ted Irwin
Performance ratios6
- Sail area / displacement
- 15.3
- Displacement / length
- 299.9
- Ballast / displacement
- 41.4 %
- Comfort ratio
- 38.32
- Capsize screening
- 1.74
- Hull speed
- 7.94 kn
Yacht photography
Years, generations and variants
Irwin 421 generation
01
1976 — status pending