- Length
- 13 m
- Beam
- 3.51 m
- Draft
- 1.98 m
- Sail area
- 77.3 m²
Specifications
Dimensions & displacement6
- Length overall
- 13 m
- Waterline length
- 9.91 m
- Beam
- 3.51 m
- Draft
- 1.98 m
- Displacement
- 9,072 kg
- Ballast
- 3,629 kg
Sails & rig9
- Rig type
- Sloop, masthead rig
- Sail area
- 77.3 m²
- Mainsail area
- 35.87 m²
- Foresail area
- 41.45 m²
- Foretriangle height (I)
- 15.85 m
- Foretriangle base (J)
- 5.23 m
- Mainsail luff (P)
- 13.84 m
- Mainsail foot (E)
- 5.18 m
- Forestay length
- 16.69 m
Engine & propulsion2
- Engine type
- Petrol
- Engine make
- Universal
Hull & construction3
- Hull material
- Fibreglass
- Keel type
- Fin keel, spade rudder
- Ballast material
- Lead
Tanks2
- Fuel tank
- 151 L
- Fresh water tank
- 265 L
Production & design4
- Production started
- 1971
- Production ended
- 1972
- Hulls built
- 14
- Designer
- C. William Lapworth
Performance ratios6
- Sail area / displacement
- 18.14
- Displacement / length
- 260.09
- Ballast / displacement
- 40 %
- Comfort ratio
- 33.62
- Capsize screening
- 1.7
- Hull speed
- 7.64 kn
Yacht photography
Years, generations and variants
Cal 431 generation
01
1971–1972