YachtCodex
Fiart

SX4

In production

Design

Designer
Massimo Simeone

Summary

52.8 ftLOA3.6 ftDRAFT14.4 ftBEAM
Motor MonohullInboard DieselCE B
Length overall
52.8 ft
Beam
14.4 ft
Maximum speed
—
Cruising speed
—
Range
—

* 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.

Speed, Power & Tanks

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

Power to weight

Total engine power per tonne of published displacement — more means livelier acceleration for the hull. Drawn for motor yachts.

not published: engine power

Tanks

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

  • Fuel383 gal
    Water185 gal

Design Category

Certified CE design category B (Offshore): 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. BThis boat

    Offshore

    Wind
    up to Beaufort 8
    Waves
    up to 4 m
  4. A

    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.

Dimensions

LOA
52.8 ft (16.1 m)
Hull length
—
LWL
—
Beam
14.4 ft (4.38 m)
Draft (min)
3.6 ft (1.1 m)
Draft (max)
—
Air draft
—
Displacement
27,558 lb (12,500 kg)
Ballast
—
Cabins
2–3
Heads
—
Berths
—

Performance

Maximum speed
—
Cruising speed
—
Range
—
Guests
—
Crew
—

Engine and Tanks

Engine
—
Engine count
2
Engine manufacturer
Volvo Penta
Propulsion type
IPS pods
Fuel capacity
383 gal (1,450 L)
Fresh water capacity
185 gal (700 L)
Black water capacity
26 gal (100 L)

Construction

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

Builder's Own Figures

Engines
2x D6 Volvo IPS500 / 600 / 650
Maximum persons on board
16
Displacement basis
as printed, load condition not stated

Figures read fromfiart.com/sx4-eng/· TECHNICAL SPECIFICATIONSread 10/18/2026

About Fiart

Premium production

Motor-boat builder from Baia, Bacoli, near Naples, founded by Ruggiero Di Luggo and known since the 1960 Conchita — nine current models from the 11.6-metre Seawalker 35 walkaround to the 17.8-metre P58, in the Seawalker, P Line and SX Line ranges, built with resin infusion.

Fiart says it began with a spark in the mind of Ruggiero Di Luggo — turning his passion for the sea into a way of life — and that from the very beginning it has specialised in motor boats set apart by their detailing and their use of space. Its timeline starts with the Conchita of 1960, a small 'plastic shell' that the yard says revolutionised boatbuilding, and the larger Super Conchita of 1964. By 1968, at the 7th Genoa boat show, Fiart was the only yard to have attended every edition. The Sea Star of 1969, the Miseno of 1970 and the Dafne L of 1971 followed, tested, the page says, by the Di Luggo family — Giancarlo, Fabrizio, Antonella and Maria Elodia. The Venus 25 of 1975 was a best seller, the Helios 45 of 1976 took Fiart to the United Arab Emirates, the Arrow of 1980 was built with BMW, and the Valiant of 1982 won the Best Hull award at the 1983 Offshore World Championship. The Fiart 35 of 1987 introduced the Genius line, the Fiart 27 of 1991 led to the 27' and 28' Cabin lines, and the Fiart 40 of 1998, with more than 100 built, opened the French market. In 2001 the founder was named Cavaliere del Lavoro by President Carlo Azeglio Ciampi. The Genius 38 and 4seven won Nautical Marketing prizes in 2006 and 2009, and the Fiart 44 Genius followed in 2009. For its 50th anniversary in 2011 Fiart launched the Epica 58 and the first walkaround, the Fiart 33 Seawalker; the Fiart 52 came in 2016, the Cetera 60', its first 'multispace yacht', in 2019, and the Fiart 43 Seawalker, ancestor of today's range, in 2020.

Visit brand page

The Fiart Range

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

  1. P5858.3 ft
  2. SX556.8 ft
  3. SX4· this model52.8 ft
  4. P5252.3 ft
  5. Seawalker 4345.4 ft
  6. Seawalker 43 Panorama45.4 ft
  7. Seawalker 39 Panorama43 ft
  8. Seawalker 3941.4 ft
  9. Seawalker 3537.9 ft

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