- Length
- 11.79 m
- Beam
- 3.56 m
- Draft
- 1.83 m
- Sail area
- 68.56 m²
Specifications
Dimensions & displacement6
- Length overall
- 11.79 m
- Waterline length
- 9.53 m
- Beam
- 3.56 m
- Draft
- 1.83 m
- Displacement
- 6,622 kg
- Ballast
- 2,994 kg
Sails & rig9
- Rig type
- Sloop, masthead rig
- Sail area
- 68.56 m²
- Mainsail area
- 29.09 m²
- Foresail area
- 39.48 m²
- Foretriangle height (I)
- 15.24 m
- Foretriangle base (J)
- 5.18 m
- Mainsail luff (P)
- 12.73 m
- Mainsail foot (E)
- 4.57 m
- Forestay length
- 16.1 m
Engine & propulsion3
- Engine type
- Diesel
- Engine make
- Perkins
- Engine model
- 4108
Hull & construction3
- Hull material
- Fibreglass, solid laminate
- Keel type
- Fin keel, skeg-hung rudder
- Ballast material
- Lead
Tanks2
- Fuel tank
- 132 L
- Fresh water tank
- 242 L
Production & design4
- Production started
- 1970
- Production ended
- 1971
- Hulls built
- 29
- Designer
- C. William Lapworth
Performance ratios6
- Sail area / displacement
- 19.84
- Displacement / length
- 213.58
- Ballast / displacement
- 45.2 %
- Comfort ratio
- 25.56
- Capsize screening
- 1.91
- Hull speed
- 7.49 kn
Yacht photography
Years, generations and variants
Cal 391 generation
01
1970–1971