Swan 431

Swan 431

Development
Designer	Sparkman & Stephens
Location	Finland
Year	1976
No. built	32
Builder(s)	Oy Nautor AB
Role	Cruiser-Racer
Name	Swan 431
Boat
Displacement	26,500 lb (12,020 kg)
Draft	7.40 ft (2.26 m)
Hull
Type	monohull
Construction	glassfibre
LOA	43.25 ft (13.18 m)
LWL	33.33 ft (10.16 m)
Beam	13.41 ft (4.09 m)
Engine type	Perkins Engines 4-108M 37 hp (28 kW) diesel engine
Hull appendages
Keel/board type	swept fin keel
Ballast	11,900 lb (5,398 kg)
Rudder(s)	Skeg-mounted rudder
Rig
Rig type	Bermuda rig
I foretriangle height	59.00 ft (17.98 m)
J foretriangle base	17.92 ft (5.46 m)
P mainsail luff	53.25 ft (16.23 m)
E mainsail foot	13.75 ft (4.19 m)
Sails
Sailplan	Masthead sloop
Mainsail area	366.09 sq ft (34.011 m2)
Jib/genoa area	529.53 sq ft (49.195 m2)
Total sail area	895.62 sq ft (83.206 m2)
Racing
PHRF	84-93

The Swan 431 is a Finnish sailboat that was designed by Sparkman & Stephens cruiser-racer and first built in 1976. The boat is Sparkman & Stephens' design #2238-C1. ^{[1] [2] [3] [4]}

Production

The design was built by Oy Nautor AB in Finland, from 1976 to 1978 with 32 boats completed, but it is now out of production. ^{[1] [2] [5] [6]}

Design

The Swan 431 is a recreational keelboat, built predominantly of glassfibre, with wood trim. It has a masthead sloop rig, a raked stem, a reverse transom, a skeg-mounted rudder controlled by a wheel and a fixed swept fin keel. It displaces 26,500 lb (12,020 kg) and carries 11,900 lb (5,398 kg) of ballast. ^{[1] [2]}

The boat has a draft of 7.40 ft (2.26 m) with the standard keel. ^{[1] [2]}

The boat is fitted with a British Perkins Engines 4-108M diesel engine of 37 hp (28 kW) for docking and manoeuvring. The fuel tank holds 40 U.S. gallons (150 L; 33 imp gal) and the fresh water tank has a capacity of 100 U.S. gallons (380 L; 83 imp gal). ^{[1] [2]}

The design has sleeping accommodation for nine people, with a double "V"-berth in the bow cabin, two straight settee berths and two pilot berths in the main cabin and two aft cabins with a double berth in the starboard cabin and a single berth in the port cabin. The galley is located on the port side just abeam of the companionway ladder. The galley is of straight configuration and is equipped with a three-burner stove, an ice box and a sink. A navigation station is opposite the galley, on the starboard side. There are two heads, one just aft of the bow cabin on the port side and one on the starboard side aft. ^{[1] [2]}

The design has a hull speed of 7.74 kn (14.33 km/h) and a PHRF handicap of 84 to 93. ^{[1] [2] [7]}

See also

• List of sailing boat types

References

1. McArthur, Bruce (2023). "Swan 431 sailboat". sailboatdata.com. Archived from the original on 11 April 2023. Retrieved 11 April 2023.
2. Sea Time Tech, LLC (2023). "Swan 431". sailboat.guide. Archived from the original on 11 April 2023. Retrieved 11 April 2023.
3. McArthur, Bruce (2023). "Sparkman & Stephens". sailboatdata.com. Archived from the original on 10 August 2020. Retrieved 11 April 2023.
4. Sea Time Tech, LLC (2023). "Sparkman & Stephens". sailboat.guide. Archived from the original on 21 June 2022. Retrieved 11 April 2023.
5. McArthur, Bruce (2023). "Nautor (Swan sailboats)". sailboatdata.com. Archived from the original on 7 April 2022. Retrieved 11 April 2023.
6. Sea Time Tech, LLC (2023). "Nautor (Swan sailboats)". sailboat.guide. Archived from the original on 6 April 2023. Retrieved 11 April 2023.
7. US Sailing (2023). "PHRF Handicaps". ussailing.org. Retrieved 11 April 2023.