Seller's Description
This Swan is a Ron Holland design built by Nautor Yachts, Finland The 391 model saw 52 hulls built between 1981and 1987. A comfortable interior with top-flight woodwork, a double and single berth in the owners’s cabin, two berths in the saloon and two berths forward, allow for long distance cruising. The 391 proves as much at ease in light airs as she is in rough weather, and her racing pedigree is impressive. This example is Hull No. 22 and was acquired in the 2012. Since then, all the standing and running rigging was replaced. She was sold in 2014 and again in 2020.
Equipment: LOA 40’ LWL 33’1” Beam 12’5” Max Draft 7’2” Displacement 18,000lbs Two Cabins One head The engine was reported new in1999 Perkins Prima 4 cylinder M50hp diesel engine direct drive with 1025 hours Engine is cooled by by raw water heat exchanger and is equipped with a wet exhaust system and muffler. Tanks: fuel 45 gallons (steel), (2) fresh water tanks 79 gallons (steel) Plastic Holding tank v-berth to starboard. Electric Windlass SAILS: - Main Dacron full-batten - Dacorn 110% jib - Dacorn 140% genoa - Dacron 90% jib - Dacron storm jib & storm trysail - (2) asymmetrical spinnakers, one ATN sock - Electronics NAV STATION: ICOM IC-M80 VHF, ICOM IC-M700 SSB, Raytheon RL70C radar/chartplotter with backstay mounted on gimbaled mount, Brooks & Gatehouse Hercules didgital diplays for speed, depth, and wind, ESN5441 AM/FM/CD stereo with saloon and cockpit speakers. plus Eclipse 5083 8-disc CD Player.also a Samsung flat tv and cyber home dvd player. In cockpit: Brooks & Gatehouse Hercules digital displays for speed, depth and wind plus analog wind displays. Autohelm 6000 autopilot.
Specs
- Designer
- Ron Holland
- Builder
- Nautor (Swan sailboats)
- Associations
- ?
- # Built
- 52
- Hull
- Monohull
- Keel
- Fin
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 39′ 11″ / 12.2 m
- Waterline Length
- 33′ 0″ / 10.1 m
- Beam
- 12′ 6″ / 3.8 m
- Draft
- 6′ 11″ / 2.1 m
- Displacement
- 18,900 lb / 8,573 kg
- Ballast
- 6,800 lb / 3,084 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 767′² / 71.3 m²
- Total Sail Area
- 767′² / 71.3 m²
Mainsail
- Sail Area
- 331′² / 30.8 m²
- P
- 47′ 3″ / 14.4 m
- E
- 14′ 0″ / 4.3 m
- Air Draft
- ?
Foresail
- Sail Area
- 436′² / 40.5 m²
- I
- 53′ 6″ / 16.3 m
- J
- 16′ 3″ / 5 m
- Forestay Length
- 55′ 11″ / 17.1 m
Auxilary Power
- Make
- Perkins
- Model
- ?
- HP
- ?
- Fuel Type
- Diesel
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 2
Calculations
- Hull Speed
-
8.7 kn
Classic: 7.71 kn
Hull Speed
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Formula
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
- Sail Area/Displacement
-
17.3
Sail Area / Displacement Ratio
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
Formula
SA/D = SA ÷ (D ÷ 64)2/3
- SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D: Displacement in pounds.
- Ballast/Displacement
-
36.0
<40: less stiff, less powerful
Ballast / Displacement Ratio
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Formula
Ballast / Displacement * 100
- Displacement/Length
-
233.3
200-300: moderate
Displacement / Length Ratio
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
Formula
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
- Comfort Ratio
-
28.8
20-30: coastal cruiser
Comfort Ratio
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Formula
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
- D: Displacement of the boat in pounds
- LWL: Waterline length in feet
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
- Capsize Screening
-
1.9
<2.0: better suited for ocean passages
Capsize Screening Formula
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
Formula
CSV = Beam ÷ ³√(D / 64)
- Beam: Width of boat at the widest point in feet
- D: Displacement of the boat in pounds
Notes
Shallow draft: 5.5’.
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