X4.9 MkII

Design

Designer

X-Yachts Design Team

Summary

Sailing Ratios

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

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.

Dimensions

LOA

50.4 ft (15.348 m)

Hull length

48.1 ft (14.65 m)

LWL

44.6 ft (13.58 m)

Beam

14.7 ft (4.49 m)

Draft (min)

6.6 ft (2 m)

Draft (max)

8.9 ft (2.71 m)

Air draft

75.5 ft (23 m)

Displacement

28,440 lb (12,900 kg)

Ballast

12,081 lb (5,480 kg)

Cabins

—

Heads

—

Berths

—

Sail Plan

Main sail

—

Jib

—

Genoa

—

Sail area

—

Downwind sail area

—

Rig type

—

Engine and Tanks

Engine

58 hp

Engine count

1

Engine manufacturer

—

Propulsion type

—

Fuel capacity

70 gal (265 L)

Fresh water capacity

82 gal (310 L)

Black water capacity

—

Construction

Mast material

—

Hull material

GRP epoxy vacuum-infused

Deck material

—

Keel type

T keel

Rudder type

—

Steering wheels

—

Builder's Own Figures

Standard Keel depth

2.30 m

Coolbox

130 litre

Anchor chain

25 m of 8 mm

Holding Tank

55 l per toilet

Hot water boiler

30 litre

Draft - Std

2.40 m

Brochure

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

• 

  X-Yachts X4.9 MKII

  X-Yachts · 2/24/2026

Videos whose title names the X4.9 MkII, from the channel the builder's site links; last checked 9/30/2026. Playing one loads YouTube's player, which may set cookies.

About X-Yachts

Premium production

Danish builder of performance cruising sailboats, founded in 1979 and based in Haderslev, Denmark.

X-Yachts was established in Denmark in 1979 and through the 1980s designed and built winning IOR racers, which drew the cruising market to ask for fast, high-quality, comfortable yachts. The Performance Cruiser range was established in the 1990s, from the X-412 through the X-512, X-382, IMX 38, X-442, X-362, X-332, X-302, X-612 and X-482 to the X-562 of 1999; the IMX 40 racer opened the new millennium, the first X-73 of 2001 took the yard into luxury deep-water cruising, and the X-43 and X-46 of 2003 began a new generation, joined by the X-40, X-37 and X-50 in 2004 and the X-55 in 2006. The X-35 one-design of 2007 had two hundred boats racing worldwide as an ISAF class, followed by the X-41. The Xc 45, first of the Xcruising family, was European Yacht of the Year in 2009, joined by the Xc 42, 50 and 38 and today by the Xc 47; the Xp 44 opened the Xperformance generation in 2010, and in 2024 that range gave way to a new era with XRACING and the XR 41.

The X-Yachts Range

Every model X-Yachts publishes, by length — where this one sits in the range.

1. X5.656.6 ft
2. X4.9 MkII· this model50.4 ft
3. Xc 4749.9 ft
4. XR 41 Race47.8 ft
5. XR 41 Sport47.8 ft
6. X4.6 MkII47.1 ft
7. X4.3 MkII43.4 ft
8. X4.039.7 ft

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