The Hallberg rassy 312 is a 30.91ft masthead sloop designed by Christoph Rassy and Olle Enderlein and built in fiberglass by Hallberg Rassy between 1979 and 1993.
690 units have been built.
It accomodates 6 people in 1 cabins plus salon.
The Hallberg rassy 312 is a heavy 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 very short water supply range.
Main features
| Model | Hallberg rassy 312 | ||
| Length | 30.91 ft | ||
| Beam | 10.07 ft | ||
| Draft | 5.31 ft | ||
| Country | Sweden (Europe) | ||
| Estimated price | $ 67100 | 
Ratios
| Sail area / displ. | 15.58 | ||
| Ballast / displ. | 44.91 % | ||
| Displ. / length | 321.12 | ||
| Comfort ratio | 28.97 | ||
| Capsize | 1.83 | 
Hull
| Hull type | Monohull fin keel with rudder on skeg | ||
| Construction | Fiberglass | ||
| Waterline length | 24.67 ft | ||
| Maximum draft | 5.31 ft | ||
| Displacement | 10802.64 lbs | ||
| Ballast | 4850.16 lbs | ||
| Hull speed | 6.66 knots | 
Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 474.04 sq.ft | ||
| Air draft | 45.01 ft | ||
| Sail area fore | 266.84 sq.ft | ||
| Sail area main | 207.21 sq.ft | ||
| I | 40.68 ft | ||
| J | 13.12 ft | ||
| P | 36.09 ft | ||
| E | 11.48 ft | 
Engine
| Nb engines | 1 | ||
| Total power | 23 HP | ||
| Fuel capacity | 32 gals | 
Accommodations
| Water capacity | 34 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 1 | ||
| Nb of berths | 6 | ||
| Nb heads | 1 | 
Builder data
| Builder | Hallberg Rassy | ||
| Designer | Christoph Rassy and Olle Enderlein | ||
| First built | 1979 | ||
| Last built | 1993 | ||
| Number built | 690 | 
 
                         
                                                     
                                     
                                         
                                         
                                         
                                         
                                         
                                        