| Development | |
|---|---|
| Designer | Peter Norlin |
| Location | Sweden |
| Year | 1983 |
| No. built | 300 |
| Builder(s) | Albin Marine |
| Name | Delta 31 |
| Boat | |
| Displacement | 8,598 lb (3,900 kg) |
| Draft | 5.90 ft (1.80 m) |
| Hull | |
| Type | monohull |
| Construction | fibreglass |
| LOA | 30.68 ft (9.35 m) |
| LWL | 24.93 ft (7.60 m) |
| Beam | 9.97 ft (3.04 m) |
| Engine type | Yanmar 1GM 8 hp (6 kW) diesel engine |
| Hull appendages | |
| Keel/board type | fin keel |
| Ballast | 3,505 lb (1,590 kg) |
| Rudder(s) | internally-mounted spade-type rudder |
| Rig | |
| Rig type | Bermuda rig |
| I foretriangle height | 36.09 ft (11.00 m) |
| J foretriangle base | 11.15 ft (3.40 m) |
| P mainsail luff | 37.73 ft (11.50 m) |
| E mainsail foot | 12.47 ft (3.80 m) |
| Sails | |
| Sailplan | fractional rigged sloop |
| Mainsail area | 235.25 sq ft (21.855 m2) |
| Jib/genoa area | 201.20 sq ft (18.692 m2) |
| Total sail area | 436.45 sq ft (40.548 m2) |
The Delta 31, also called the Albin Delta, is a Swedish sailboat that was designed by Peter Norlin as a cruiser-racer and first built in 1983.[1][2][3]
The Delta 31 was designed as a replacement for the Ballad 30 in the company's product line.[3]
The design was built by Albin MarineinSweden from 1983 to 1986, with 300 boats completed, but it is now out of production.[1][4]
The Delta 31 is a recreational keelboat, built predominantly of fibreglass, with wood trim. It has a fractional sloop rig, a raked stem, a reverse transom, an internally mounted spade-type rudder controlled by a tiller and a fixed fin keel. It displaces 8,598 lb (3,900 kg) and carries 3,505 lb (1,590 kg) of ballast.[1]
The boat has a draft of 5.90 ft (1.80 m) with the standard keel and is fitted with a Japanese Yanmar 1GM diesel engine of 8 hp (6 kW) for docking and manoeuvring.[1]
The design has sleeping accommodation for six people, with a double "V"-berth in the bow cabin, an U-shaped settee and a quarter berth in the main cabin and an aft cabin with a double berth on the starboard side. The galley is located on the port side just forward of the companionway ladder. The galley is equipped with a two-burner stove and a round sink. A navigation station is aft of the galley, on the port side. The head is located just aft of the bow cabin on the starboard side.[5]
In a 2009 review Yachting Monthly described the design as, "a sleek, powerful, fractionally rigged cruiser-racer".[3]
