The Costantini 30 is a 30.35ft masthead sloop designed by Gilles Costantini and built in fiberglass by Costantini (Chantier Naval Costantini) between 1971 and 1976.
5 units have been built.
The Costantini 30 is a moderate weight sailboat which is a reasonably good performer. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.
Main features
| Model | Costantini 30 | ||
| Length | 30.35 ft | ||
| Beam | 9.91 ft | ||
| Draft | 5.64 ft | ||
| Country | France (Europe) | ||
| Estimated price | $ 0 | ?? | 
Ratios
| Sail area / displ. | 17.35 | ||
| Ballast / displ. | 50 % | ||
| Displ. / length | 228.97 | ||
| Comfort ratio | 17.37 | ||
| Capsize | 2.19 | 
Hull
| Hull type | Monohull fin keel with spade rudder | ||
| Construction | Fiberglass | ||
| Waterline length | 22.64 ft | ||
| Maximum draft | 5.64 ft | ||
| Displacement | 5952 lbs | ||
| Ballast | 2976 lbs | ||
| Hull speed | 6.38 knots | 
Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 355 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 216.44 sq.ft | ||
| Sail area main | 138.68 sq.ft | ||
| I | 34.91 ft | ||
| J | 12.40 ft | ||
| P | 30.18 ft | ||
| E | 9.19 ft | 
Engine
| Nb engines | 1 | ||
| Total power | 0 HP | ||
| Fuel capacity | 0 gals | 
Accommodations
| Water capacity | 0 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 | 
Builder data
| Builder | Costantini (Chantier Naval Costantini) | ||
| Designer | Gilles Costantini | ||
| First built | 1971 | ||
| Last built | 1976 | ||
| Number built | 5 | 
 
                         
                                                     
                                         
                                         
                                         
                                         
                                         
                                        