12+ months

Windy SR77

LOA0.0m
Beam0.00m
Top Speed0kn
Draft0.00m
Range0nm
Engines2x MAN V12-1800 (waterjet option); Volvo Penta IPS 1350 (IPS option)
Propulsionjet
ClassCE-B

About this tender

Windy SR77 - what we know.

The SR77 is the build we ask Windy for when a programme genuinely needs a 24-metre chase platform rather than an oversized tender. At 23.98m LOA it is the largest hull Windy has produced, and the propulsion choice defines its character: twin MAN V12-1800s driving waterjets for owners who want speed and simplicity, or three Volvo Penta IPS 1350 units for those who prefer low-speed manoeuvrability and fuel economy on longer transits. Both routes are developed in direct dialogue with Windy's engineering team, and neither is an afterthought.

Naval architecture and exterior design come from Malcolm McKeon Yacht Design, a practice whose superyacht credentials give the SR77 a hull geometry and above-waterline profile that sits comfortably alongside purpose-built expedition and chase vessels from larger European yards. Interior arrangement is bespoke to each order, which is appropriate at this scale. The published range figure of 600 nm is quoted with the long-range tank fitted on the waterjet configuration, so buyers speccing for extended passages should confirm tank layout early in the project.

CE Category B certification covers coastal and offshore passages in significant wave heights up to four metres, which is the correct envelope for a vessel supporting a superyacht programme across the Mediterranean, Northern Europe, or the Caribbean. The 8,800-litre fuel capacity and 1,000-litre fresh water tankage are serious numbers that reflect genuine offshore intent rather than day-boat aspirations. At 48.5 tonnes displacement this is not a hull that stows in a garage; it is a dedicated support vessel that travels independently or on davits from a very large mothership.

Highlights

Built for the work.

The four details we'd point out first to a captain who hasn't seen one on the water yet.

01

Malcolm McKeon naval architecture

Both naval architecture and exterior design are attributed to Malcolm McKeon Yacht Design Ltd, a practice with a strong superyacht pedigree. That provenance matters at this size: the hull lines, structural engineering, and above-waterline proportions are developed to a standard that competes directly with dedicated chase vessel builders from the Netherlands and Italy.

02

Twin waterjet or triple IPS propulsion

Buyers choose between twin MAN V12-1800 engines driving waterjets, suited to higher-speed chase and security roles, or three Volvo Penta IPS 1350 units, which offer joystick docking and better fuel efficiency at lower cruise speeds. The two configurations produce meaningfully different handling characters, and the decision should be made early given its structural implications.

03

600 nm range with extended tankage

The 600 nm range figure is quoted for the waterjet configuration with the long-range tank fitted. The 8,800-litre standard fuel capacity is substantial for a 24-metre hull, and the optional long-range tank extends independent passage-making to a level that supports Atlantic crossings as a transit vessel without fuel stops at every port.

04

Fully bespoke interior and deck layout

No standard interior is offered. Deck layout, cabin arrangement, bathroom specification, materials, and onboard systems are all defined per order. For owners whose yacht already has a strong interior design language, this means the SR77 can be finished to match rather than simply complement the mothership.

05

48.5-tonne displacement at 23.98m LOA

The published displacement of 48.5 tonnes gives a realistic picture of structure and outfit quality. It is not a lightweight racing hull; it is built to carry a full crew, guest accommodation, and a significant toy programme over extended passages, which is precisely what a flagship chase vessel at this length should do.

The full specification

Every number, sorted.

Dimensions

Length overall
23.98m
Beam
6.00m
Draft
1.03m
Dry weight
48,500kg

Performance

Top speed
40kn
Range
600nm

Power and Tanks

Engines
2x MAN V12-1800 (waterjet option); Volvo Penta IPS 1350 (IPS option)
Power
1,800hp ea.
Propulsion
jet
Fuel capacity
8,800L
Water capacity
1,000L

Construction

Classification
CE-B

Power and Propulsion

Option 1 engines
2x MAN V12-1800
Option 2 engines
3x Volvo Penta IPS 1350 (TBA)

Capacity and Tankage

Grey water capacity
300L

Certification and Design

Naval architecture
Malcolm McKeon Yacht Design Ltd
Exterior design
Malcolm McKeon Yacht Design Ltd
Interior design
Bespoke per order
Builder
Windy Scandinavia AB, Västervik, Sweden

Specifications, prices, availability, and performance figures are supplied for guidance only and remain subject to confirmation by the yard, seller, broker, survey, contract, and final specification.

Questions, answered

Before you enquire.

What propulsion options are available on the SR77?
Two configurations are offered. The first pairs twin MAN V12-1800 engines with waterjets, suited to higher-speed chase roles. The second uses three Volvo Penta IPS 1350 units, which provide joystick docking and better low-speed fuel economy. Both are developed with Windy's engineering team and the choice affects structural layout, so it must be confirmed early in the specification process.
What is the published range and how is it achieved?
Windy quotes 600 nm for the waterjet configuration fitted with the long-range tank. Standard fuel capacity is 8,800 litres. Buyers planning extended transits should confirm whether the long-range tank is standard or an option and clarify the cruise speed at which the range figure is calculated.
Who designed the SR77's hull and exterior?
Both naval architecture and exterior design are attributed to Malcolm McKeon Yacht Design Ltd, a practice with significant superyacht project experience. That is an unusual level of external design input for a production builder and is part of what positions the SR77 above standard chase-boat offerings at this length.
What CE category does the SR77 hold?
CE Category B, covering offshore use in significant wave heights up to four metres and wind forces up to Beaufort 8. This is the appropriate certification for a vessel supporting superyacht programmes across exposed coastal and offshore routes including the Mediterranean, Northern Europe, and the Atlantic islands.
Can the interior and deck layout be customised?
Yes. Windy does not publish a standard interior for the SR77. Deck layout, cabin arrangement, materials, bathroom specification, and onboard systems are all defined per order in dialogue with Windy's design and engineering team. Enquiries are handled directly by Windy at contact@windyboats.com.
Where is the SR77 built?
Windy Scandinavia AB operates production facilities in Västervik on the east coast of Sweden, with additional production in Ostróda and Slupsk in Poland. The SR77, as the yard's flagship model, is understood to be built at the Swedish facility, though buyers should confirm production location when placing an order.

The yard

Windy

Västervik, Sweden

Windy (Windy Scandinavia AB) is a Scandinavian builder founded in 1966 by Hugo Vold, originally on the Norwegian coast. Production today runs from facilities in Västervik on the east coast of Sweden and in Ostróda and Słupsk in Poland, with more than 170 people across the yards turning out hulls from 26 to 77 feet across two product lines: the Sport Series and the SR Series Chase Boats and Yacht Tenders.

The build that put Windy on the superyacht-tender map is the SR52 Blackbird, a 16.10m chase boat co-designed with Dubois Naval Architects and naval architect Hans Jørgen Johnsen. It debuted at the Cannes Yachting Festival in 2010 and was rated best chase boat in the world by Superyacht Magazine in 2015. Over 130 hulls have been built. The flagship today is the SLR/SR60, an 18.18m chase platform designed in collaboration with Malcolm McKeon Yacht Design, running triple Volvo Penta IPS units to 43 knots with a range of 850 nautical miles at 25 knots.

We'd put Windy alongside the stronger Italian open-boat builders on hull stiffness and seakeeping, and ahead of most on design pedigree - the SR series has drawn collaborations with Dubois, McKeon, Espen Øino, and Studio Liaigre. The construction method across the SR range is vacuum-injection moulding with a Divinycell foam core: the result is a lighter, stiffer hull than a hand-laid equivalent, carried through into every walkaround deck and below-decks fit-out. If your programme needs a chase platform that can cover open passages and present credibly alongside a 60m-plus mothership, the SR52 or SLR/SR60 are the builds we ask Windy for.

Lead time · 12+ months

Enquire about the SR77.

Windy · Västervik, Sweden

Indicative price fromPrices on request
Lead time12+ months
LOA
24.0m
Beam
6.00m
Top Speed
40kn
Draft
1.03m

Tell us about your yacht, your programme, and the missions SR77 needs to handle. Build slot is currently 12+ months; we come back within 48 hours with a written assessment, options to shorten the lead time, and trade-offs against alternatives.

Prefer to talk? +44 (0) 77180 88055 · other ways to reach us