YachtCodex
Nautor Swan

Swan 51

In production
Nautor Swan Swan 51 — photo 1

1 / 17

Hull — Nautor Swan

Design

Designer
Lucio Micheletti
Naval architect
Germán Frers
Interior designer
Misa Poggi

Summary

55.4 ftLOA8 ftDRAFT15.9 ftBEAM
Sailing MonohullSail
Length overall
55.4 ft
Beam
15.9 ft
Draft
6.7–8 ft
Displacement
39,683 lb
Cabins
3

* A standard reference image, not the actual boat — shown to help visualise this model's published dimensions.

Best Suited For

Tags are derived from certified class, length, sail area, accommodation and tankage using the criteria described on the Sources page; an editor may add or remove one.

Sailing Ratios

Classic yacht-design ratios worked out from the builder's published figures, each shown against the bands designers read it by.

Sail area / displacement

How much sail the boat carries for its weight — its power in light air.

ModestCruiserPerformanceRacing162024Swan 51: 21.8
  • 21.8· Performance
How it is worked out

sail area (ft²) ÷ (displacement as ft³ of seawater)^⅔

mainsail + jib, added up

Displacement / length

How heavy the boat is for its waterline length. Lower is lighter and quicker; higher is steadier and roomier.

UltralightLightModerateHeavyVery heavy100180270350Swan 51: 159
  • 159· Light
How it is worked out

displacement (long tons) ÷ (0.01 × waterline length in ft)³

Ballast ratio

The share of the weight carried in the keel — a rough guide to stiffness, though how deep that weight sits matters as much.

LowModerateHigh3040Swan 51: 35
  • 35· Moderate
How it is worked out

ballast ÷ displacement × 100

Comfort ratio

Ted Brewer's measure of how gently a boat moves in a seaway. Higher means a slower, easier motion.

LightCoastalModerate offshoreHeavy offshoreVery heavy20304050Swan 51: 30.3
  • 30.3· Moderate offshore
How it is worked out

displacement (lb) ÷ (0.65 × (0.7 × LWL + 0.3 × LOA) × beam^1.333), lengths in ft

Capsize screening

A guide from the inquiry after the 1979 Fastnet race: below 2 was taken as suited to ocean passages. It ignores hull shape and where the ballast sits.

Below 22 and above2Swan 51: 1.87
  • 1.87· Below 2
How it is worked out

beam (ft) ÷ (displacement as ft³ of seawater)^⅓

Hull speed

Roughly the speed a displacement hull reaches before it has to climb its own bow wave.

  • 9.3 kn
How it is worked out

1.34 × √(waterline length in ft), in knots

Most builders publish a light displacement. The ratios were defined on a loaded boat, so every boat here reads a little lighter than a surveyor's figure would — all alike, which keeps them comparable.

Tanks

What the builder publishes about how fast, how strong and how much the boat carries.

Fuel and water on one scale: a tank twice the height holds twice as much.

  • Fuel172 gal
    Water132 gal

A figure marked with a quote mark was read from the builder's page. Open it for the exact line, the page and the date.

Dimensions

LOA
55.4 ft (16.9 m)
Hull length
51 ft (15.55 m)
LWL
48.1 ft (14.67 m)
Beam
15.9 ft (4.85 m)
Draft (min)
6.7 ft (2.05 m)
Draft (max)
8 ft (2.45 m)
Air draft
—
Displacement
39,683 lb (18,000 kg)
Ballast
13,889 lb (6,300 kg)
Cabins
3
Heads
2
Berths
—

Sail Plan

Main sail
861 ft² (80 m²)
Jib
722 ft² (67.1 m²)
Genoa
—
Sail area
—
Downwind sail area
—
Rig type
—

Engine and Tanks

Engine
80 hp (Yanmar)
Engine count
1
Engine manufacturer
Yanmar
Propulsion type
—
Fuel capacity
172 gal (650 L)
Fresh water capacity
132 gal (500 L)
Black water capacity
—

Construction

Mast material
—
Hull material
—
Deck material
—
Keel type
—
Rudder type
—
Steering wheels
—

Builder's Own Figures

Fore triangle
63.1 m²
J
6.10 m
Service battery
24V 300Ah (20h)
Starting battery
12V 50Ah AGM
Shore power
230V 32A 50Hz
E
6.70 m
IG
20.70 m
Holding tanks
100 L
Hot water
40 L
Battery charger
70A
P
19.90 m

Figures read fromthe builder's page

Layouts & Drawings

1 drawing from the builder's page: general arrangement, sail plan, profile.

Brochure

Download the official Swan 51 brochure (PDF)

Videos

External content

Films of this model from the builder's official YouTube channel (Nautor Swan). They are the builder's own; the figures above are the reference.

Videos whose title names the Swan 51, from the channel the builder's site links; last checked 9/30/2026. Playing one loads YouTube's player, which may set cookies.

About Nautor Swan

Premium production

Finnish builder of luxury sailing yachts, founded in 1966 in Pietarsaari and known worldwide as Nautor Swan.

Oy Nautor AB was founded in 1966 by Pekka Koskenkylä at Pietarsaari, Finland, on centuries of Finnish boatbuilding and a wish to build high-performance sailing yachts of high quality. The first was the Swan 36, whose glass-reinforced hull came with a number of other innovations: it matched the traditional wooden yacht for performance and safety while steering more steadily, weighing less and offering more room below. Sparkman & Stephens drew roughly the first thousand Swans, the Swan 38 and Swan 47 among them, and the larger, seagoing Swan 55 and Swan 65 followed -- one of them, Sayula II, winning the first Whitbread Round the World Race in 1973-74. Ron Holland designed five yachts between 1978 and 1981, including the Swan 37, 39 and 42, and Germán Frers became the principal designer through the 1980s, later opening the one-design racing division with the Swan 45 in 2001 and the ClubSwan 42 in 2005. More than 2,350 yachts between 28 and 131 feet have been built in six decades. Everything is made at Pietarsaari, where engineering sits beside production, and the range now runs across six lines: Swan, Swan Maxi, ClubSwan, Swan Alloy, SwanScape and the motor yacht division Swan Shadow.

Visit brand page

The Nautor Swan Range

Every model Nautor Swan publishes, by length — where this one sits in the range.

  1. Swan 7377.7 ft
  2. Swan 6571.4 ft
  3. Swan 5862.7 ft
  4. Swan 5558.2 ft
  5. Swan 51· this model55.4 ft
  6. ClubSwan 5054.9 ft
  7. ClubSwan 4347.8 ft
  8. ClubSwan 3636.1 ft
  9. ClubSwan 2835.1 ft

By the Same Designers

Boats this boat's designers also drew, for other builders too. Credits are grouped only where the names clearly agree, however each builder spelled them; an unclear one is left out.

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