- Length
- 9.5 m
- Beam
- 2.84 m
- Draft
- 1.4 m
- Sail area
- 35.86 m²
Specifications
Dimensions & displacement6
- Length overall
- 9.5 m
- Waterline length
- 7.14 m
- Beam
- 2.84 m
- Draft
- 1.4 m
- Displacement
- 4,763 kg
- Ballast
- 2,546 kg
Sails & rig2
- Rig type
- Sloop, masthead rig
- Sail area
- 35.86 m²
Engine & propulsion3
- Engine power
- 25 hp
- Engine type
- Diesel
- Engine model
- Volvo Penta MD2B
Hull & construction2
- Hull material
- Fibreglass
- Keel type
- Fin keel, skeg-hung rudder
Production & design7
- Production started
- 1971
- Production ended
- 1974
- Hulls built
- 111
- First hull number
- 1
- Last hull number
- 111
- Builder country
- Netherlands
- Designer
- Uus van Essen
Performance ratios7
- Sail area / displacement
- 12.92
- Displacement / length
- 364.68
- Ballast / displacement
- 53.5 %
- Comfort ratio
- 32.24
- Capsize screening
- 1.7
- Hull speed
- 6.49 kn
- Load per cm of immersion
- 139.3 kg/cm
Yacht photography
Years, generations and variants
Contest 311 generation
01
1971–1974