YachtCodex
Grand Soleil

GS 42 LC

In production
Grand Soleil GS 42 LC — photo 1

1 / 10

Grand Soleil

Design

Designer
Nauta Design
Naval architect
Marco Lostuzzi
Interior designer
Nauta Design

Summary

45.4 ftLOA7.4 ftDRAFT13.7 ftBEAM
Sailing MonohullSailCE A
Length overall
45.4 ft
Beam
13.7 ft
Draft
7.4 ft
Displacement
24,471 lb
Sail area (upwind)
1,163 ft²
Cabins
2–3

* 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.

ModestCruiserPerformanceRacing162024GS 42 LC: 22.1
  • 22.1· Performance
How it is worked out

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

published upwind sail area

Displacement / length

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

UltralightLightModerateHeavyVery heavy100180270350
  • not published: waterline length
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.

LowModerateHigh3040
  • not published: ballast
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 heavy20304050
  • not published: waterline length
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 above2GS 42 LC: 1.89
  • 1.89· 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.

  • not published: waterline length
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.

  • Fuel53 gal
    Water79 gal

Design Category

Certified CE design category A (Ocean): the wind and waves the EU Recreational Craft Directive says this boat is designed to take.

  1. D

    Sheltered waters

    Wind
    up to Beaufort 4
    Waves
    up to 0.3 m
  2. C

    Inshore

    Wind
    up to Beaufort 6
    Waves
    up to 2 m
  3. B

    Offshore

    Wind
    up to Beaufort 8
    Waves
    up to 4 m
  4. AThis boat

    Ocean

    Wind
    above Beaufort 8
    Waves
    above 4 m

Design limits set by the EU Recreational Craft Directive (2013/53/EU), in significant wave height. A category covers the conditions of those below it. It is the limit the boat was designed to, not a promise that it is safe in any conditions within it — that judgement stays with the skipper.

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
45.4 ft (13.83 m)
Hull length
42.5 ft (12.95 m)
LWL
—
Beam
13.7 ft (4.18 m)
Draft (min)
7.4 ft (2.25 m)
Draft (max)
7.4 ft (2.25 m)
Air draft
—
Displacement
24,471 lb (11,100 kg)
Ballast
—
Cabins
2–3
Heads
—
Berths
—

Sail Plan

Main sail
—
Jib
—
Genoa
—
Sail area
1,163 ft² (108 m²)
Downwind sail area
—
Rig type
—

Engine and Tanks

Engine
50–60 hp
Engine count
1
Engine manufacturer
—
Propulsion type
—
Fuel capacity
53 gal (200 L)
Fresh water capacity
79 gal (300 L)
Black water capacity
—

Construction

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

Builder's Own Figures

Guests
6/8
Engines
50 hp std. 60 hp opt.
Displacement basis
lightship/approx. as printed (t -> kg)
Engine power basis
std. / opt. as printed

Figures read fromwww.grandsoleil.net/products/gs-42-lc· TECHNICAL INFOread 9/22/2026

Brochure

Download the official GS 42 LC brochure (PDF)

About Grand Soleil

Premium production

Italian builder of performance-oriented sailing yachts, established over 50 years ago, part of Cantiere del Pardo S.p.A.

The Grand Soleil Line is where the brand began, more than fifty years ago, and it remains its core: sailing yachts under 65 feet built by Cantiere del Pardo. What the yard calls its dual DNA is the refusal to make an owner choose between speed and comfort -- on one side a racing heart, pushing for hydrodynamics, sail plans that are powerful but manageable, and current construction; on the other the long-distance line, with the volume, range and stowage of a home at sea. The racing half is not a slogan: Grand Soleils have won the IMS and ORC world championships more than once, and raced the Fastnet, the Rolex Giraglia and the Middle Sea Race.

Visit brand page

The Grand Soleil Range

Every model Grand Soleil publishes, by length — where this one sits in the range.

  1. GS Plus 65 LC70.9 ft
  2. GS Plus 65 P70.9 ft
  3. GS 60 LC64.6 ft
  4. GS 5255.9 ft
  5. GS 52 LC55.7 ft
  6. GS 4449.2 ft
  7. GS 42 LC· this model45.4 ft
  8. GS 4044.3 ft
  9. GS Blue37.1 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.

Similar Yachts