YachtCodex
Nautor Swan

Swan 120

Discontinued
Nautor Swan Swan 120 — photo 1

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Design

Designer
Germán Frers
Interior designer
Misa Poggi

Summary

124.5 ftLOA18 ftDRAFT26.6 ftBEAM
Sailing MonohullSail
Length overall
124.5 ft
Beam
26.6 ft
Draft
11.5–18 ft
Displacement
218,257 lb
Cabins
4

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

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 120: 32.9▶
  • 32.9· Racing
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 120: 78
  • 78· Ultralight
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 120: 31
  • 31· 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 120: 37.5
  • 37.5· 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 120: 1.77
  • 1.77· 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.

  • 13.9 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.

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
124.5 ft (37.94 m)
Hull length
119.4 ft (36.4 m)
LWL
107.7 ft (32.84 m)
Beam
26.6 ft (8.12 m)
Draft (min)
11.5 ft (3.5 m)
Draft (max)
18 ft (5.5 m)
Air draft
—
Displacement
218,257 lb (99,000 kg)
Ballast
67,461 lb (30,600 kg)
Cabins
4
Heads
—
Berths
—

Sail Plan

Main sail
3,880 ft² (360.5 m²)
Jib
3,579 ft² (332.5 m²)
Genoa
—
Sail area
—
Downwind sail area
8,073 ft² (750 m²)
Rig type
—

Engine and Tanks

Engine
450 hp
Engine count
1
Engine manufacturer
—
Propulsion type
—
Fuel capacity
—
Fresh water capacity
—
Black water capacity
—

Construction

Mast material
—
Hull material
full carbon fibre
Deck material
—
Keel type
—
Rudder type
—
Steering wheels
—

Builder's Own Figures

Displacement (loaded)
112000 kg
Tender
4.5 metres
Starting batteries
24 V 75 Ah / 20 h
Shore power
230/400 V 50A 3-phase
P
43.00 mt
Diesel generator
2 x 230/400 V 32 kW 3-phase
Service battery
24 V 1980 Ah / 1 h
J
13.85 mt
I
44.42 mt
Radio battery
24 V 180 Ah / 1 h
E
14.10 mt
Fore triangle
307 sqm

Figures read fromthe builder's page

Layouts & Drawings

3 drawings from the builder's page: general arrangement, sail plan, profile.

Brochure

Download the official Swan 120 brochure (PDF)

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. ClubSwan 125Discontinued139.8 ft
  2. Swan 128127.9 ft
  3. Swan 120· this modelDiscontinued124.5 ft
  4. Swan 108117 ft
  5. Swan 98101.9 ft
  6. Swan 8892.7 ft
  7. Swan 8083.8 ft
  8. ClubSwan 80Discontinued81 ft
  9. Swan 7377.7 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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