- Length
- 9.6 m
- Beam
- 3.05 m
- Draft
- 1.52 m
- Sail area
- 45.52 m²
Specifications
Dimensions & displacement7
- Length overall
- 9.6 m
- Waterline length
- 7.82 m
- Beam
- 3.05 m
- Draft
- 1.52 m
- Displacement
- 4,159 kg
- Ballast
- 1,633 kg
- Mast height above water
- 13.84 m
Sails & rig9
- Rig type
- Sloop, masthead rig
- Sail area
- 45.52 m²
- Mainsail area
- 19.51 m²
- Foresail area
- 26.02 m²
- Foretriangle height (I)
- 12.65 m
- Foretriangle base (J)
- 4.11 m
- Mainsail luff (P)
- 10.67 m
- Mainsail foot (E)
- 3.66 m
- Forestay length
- 13.3 m
Engine & propulsion3
- Engine power
- 16 hp
- Engine type
- Diesel
- Engine make
- Universal
Hull & construction3
- Hull material
- Fibreglass
- Keel type
- Fin keel, spade rudder
- Ballast material
- Lead
Tanks2
- Fuel tank
- 76 L
- Fresh water tank
- 212 L
Production & design3
- Production started
- 1979
- Production ended
- 1984
- Designer
- William Lapworth
Performance ratios6
- Sail area / displacement
- 17.95
- Displacement / length
- 242.02
- Ballast / displacement
- 39.3 %
- Comfort ratio
- 24.07
- Capsize screening
- 1.91
- Hull speed
- 6.79 kn
Yacht photography
Years, generations and variants
Cal 311 generation
01
1979–1984