Engineering:Delta 31

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Short description: Sailboat class
Delta 31
Development
DesignerPeter Norlin
LocationSweden
Year1983
No. built300
Builder(s)Albin Marine
Boat
Boat weight8,598 lb (3,900 kg)
Draft5.90 ft (1.80 m)
Hull
Typemonohull
Constructionfibreglass
LOA30.68 ft (9.35 m)
LWL24.93 ft (7.60 m)
Beam9.97 ft (3.04 m)
Engine typeYanmar 1GM 8 hp (6 kW) diesel engine
Hull appendages
Keel/board typefin keel
Ballast3,505 lb (1,590 kg)
Rudder(s)internally-mounted spade-type rudder
Rig
Rig typeBermuda 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
Sailplanfractional rigged sloop
Mainsail area235.25 sq ft (21.855 m2)
Jib/genoa area201.20 sq ft (18.692 m2)
Total sail area436.45 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]

Production

The design was built by Albin Marine in Sweden from 1983 to 1986, with 300 boats completed, but it is now out of production.[1][4]

Design

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]

Operational history

In a 2009 review Yachting Monthly described the design as, "a sleek, powerful, fractionally rigged cruiser-racer".[3]

See also

References

External links