Nauticat 525. Specs, Review & Bluewater Guide

Nauticat 525 – Flagship Finnish Pilothouse Motorsailer

The Nauticat 525 is the largest production model built by Nauticat Yachts in Finland before the original yard closed. Designed by Kaj Gustafsson / Siltala Design Office and first launched in 2010, she was produced until around 2018.

She is a true bluewater pilothouse ketch aimed at serious long-distance cruising and full-time liveaboard life. With nearly 24 tonnes displacement, enormous tankage and a protected pilothouse, the Nauticat 525 represents the high end of the classic Finnish motorsailer philosophy.

H2: Nauticat 525 Specifications

Specification	Value
Designer	Kaj Gustafsson / Siltala Design Office
Builder	Nauticat Yachts, Finland
Production period	2010 – 2018
LOA (without bowsprit)	15.90 m (52 ft 2 in)
LOA (with bowsprit)	Up to 16.65 m (54 ft 7 in)
LWL	12.20 m (40 ft)
Beam	4.60 m (15 ft 1 in)
Draft	2.20 m (7 ft 3 in)
Displacement	Approx. 24,000 kg
Ballast	Approx. 8,700 kg (lead)
Hull type	Fin keel with partial skeg
Rig	Masthead ketch
Sail area (upwind)	Approx. 141.7 m²
Engine (standard)	Perkins M150 TI, 150 hp
Fuel capacity	Approx. 1,570 litres
Fresh water	Approx. 1,650 litres
Headroom	Up to 1.97–2.05 m
CE category	A (Ocean)

Exact figures can vary slightly with options such as bowsprit, engine upgrades and custom interiors.

Rig and Sail Handling

The Nauticat 525 is built as a masthead ketch. The divided sail plan keeps individual sails manageable for a short-handed crew despite the boat’s size.

Typical sail areas:

Mainsail ≈ 43 m²
Mizzen ≈ 20 m²
Genoa I ≈ 78–79 m²

Many boats are equipped with furling systems on the main and genoa (often electric), which makes the 525 surprisingly easy to handle for a 52-foot yacht. The ketch configuration also gives excellent balance when reaching or running and allows progressive reduction of sail area in rising wind.

How the Nauticat 525 Compares

Compared with the Nauticat 441 and classic Nauticat 44 The 525 is a significant step up in every dimension — length, beam, displacement, tankage and interior volume. While the 441 remains a refined long-keel motorsailer of more manageable size, the 525 is a proper small ship designed for ocean passages and extended autonomy.

Compared with the Nauticat 38 Our own boat, the Nauticat 38, is roughly half the displacement and far more compact. The 525 offers dramatically more living space, range and carrying capacity, but demands deeper berths, higher running costs and more serious systems management. The fundamental Nauticat character — solid construction, protective pilothouse and prioritisation of comfort over pure speed — is shared across both models.

In short: the 38 is the practical everyday and coastal/medium-distance boat; the 525 is the serious bluewater liveaboard flagship.

Layout and Liveaboard Potential

A typical Nauticat 525 layout includes:

Spacious pilothouse with inside helm and excellent all-round visibility
Large saloon and well-equipped galley
Full-beam or generous aft owner’s cabin
Forward cabin(s)
Two or more heads (some boats have a sauna)
Raised aft cockpit

With approximately 1,570 litres of fuel and 1,650 litres of water, the boat has genuine ocean range. The high freeboard, solid construction and CE Category A certification make her suitable for extended passages in demanding conditions.

Many owners equip the 525 with generators, watermakers, air conditioning and comprehensive electrical systems — turning her into a true long-term liveaboard platform.

What These Boats Feel Like Under Sail

Although we sail a much smaller Nauticat 38, the fundamental seakeeping qualities of the Finnish motorsailers are consistent across the range. Heavy displacement, a protective pilothouse and a well-balanced ketch rig produce a boat that feels secure and comfortable rather than lively.

These two videos from our channel give a realistic impression of how a classic Nauticat behaves:

Is the Nauticat seaworthy? How a motorsailer handles in rough conditions:

Sailing performance and keel types explained:

For a direct look at the Nauticat 525 herself, this footage shows a new boat sailing in Finnish waters:

Nauticat 525 under sail:

Is the Nauticat 525 a Good Choice Today?

Strengths

Largest and most capable production Nauticat
Excellent all-weather pilothouse
Very large tankage and carrying capacity
CE Category A Ocean certification
Manageable ketch rig for the size
Strong Finnish build quality from the final years of the original yard
Genuine long-distance liveaboard potential

Points to check carefully

Condition of teak decks and exterior woodwork
Engine hours and service history (Perkins or upgraded engines)
Standing and running rigging
Condition of the fin keel and partial skeg
Complexity and condition of systems (generator, watermaker, electrics, heating/air-con)
Overall maintenance level — these are complex, high-value boats

The Nauticat 525 is not a boat for casual weekend sailing or tight marina living. She is built for people who want to go far, stay out for long periods, and prioritise comfort, safety and autonomy.

If you are considering buying or selling a Nauticat 525, we can help through our brokerage work. See Buy a Boat and Sell Your Boat.

Who the Nauticat 525 Is For

The 525 suits experienced couples or small families who want a serious bluewater platform and are prepared for the responsibilities that come with a nearly 24-tonne yacht.

She works particularly well for:

Full-time liveaboards planning ocean crossings or multi-year cruising
Owners who value a proper pilothouse and the ability to keep watch in comfort
Sailors who prefer a ketch’s flexibility over a pure sloop
People who want Finnish build quality and the classic Nauticat character scaled up

She is less suitable for those who mainly day-sail, berth in shallow or crowded marinas, or want a lighter, more performance-oriented boat.

Many of the same reasons that led us to choose a Nauticat 38 also apply here: solid construction, a real pilothouse, and the ability to keep going when the weather turns. The difference is mainly one of scale and ambition. The 525 simply gives you more of everything the brand stands for.

The Nauticat 525 is the flagship expression of the classic Finnish motorsailer — built for people who want to leave the hamster wheel far behind and live well on the ocean for years at a time.