The Contest 31 ht is a 31.17ft masthead sloop designed by Dick Zaal and built in fiberglass by Contest Yachts - Conyplex between 1972 and 1983.
252 units have been built.
The Contest 31 ht is a moderate weight sailboat which is slightly under powered. It is very stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser. The fuel capacity is originally small. There is a short water supply range.
Main features
| Model | Contest 31 ht | ||
| Length | 31.17 ft | ||
| Beam | 10.33 ft | ||
| Draft | 5.74 ft | ||
| Country | The Nederlands (Europe) | ||
| Estimated price | $ 0 | ?? | 
Ratios
| Sail area / displ. | 14.42 | ||
| Ballast / displ. | 47.25 % | ||
| Displ. / length | 288.76 | ||
| Comfort ratio | 26.75 | ||
| Capsize | 1.89 | 
Hull
| Hull type | Monohull fin keel with rudder on skeg | ||
| Construction | Fiberglass | ||
| Waterline length | 25.33 ft | ||
| Maximum draft | 5.74 ft | ||
| Displacement | 10512 lbs | ||
| Ballast | 4967 lbs | ||
| Hull speed | 6.74 knots | 
Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 431 sq.ft | ||
| Air draft | 44.33 ft | ||
| Sail area fore | 265.39 sq.ft | ||
| Sail area main | 165.92 sq.ft | ||
| I | 39.67 ft | ||
| J | 13.38 ft | ||
| P | 34.28 ft | ||
| E | 9.68 ft | 
Engine
| Nb engines | 1 | ||
| Total power | 0 HP | ||
| Fuel capacity | 26 gals | 
Accommodations
| Water capacity | 61 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 | 
Builder data
| Builder | Contest Yachts - Conyplex | ||
| Designer | Dick Zaal | ||
| First built | 1972 | ||
| Last built | 1983 | ||
| Number built | 252 | 
 
                         
                                                     
                                         
                                         
                                         
                                         
                                         
                                        