An ambitious project combining racing and cruising
The Lift 45, Marc Lombard Design Group's latest creation, is positioned as a cruiser-racer inspired by the latest evolutions of the Class40 Lift V3. Built in the UK by SR Structures, this 13.81-meter monohull has a dual ambition: to offer performance close to that of racing yachts, while retaining a level of comfort suited to ocean cruising.
A young but experienced site
Based in the former Green Marine premises in Lymington, SR Structures was founded in 2023 by Sam Pellow and Ross Hotchkiss. The company, which employs some fifteen specialists in composite construction, benefits from know-how inherited from the construction of TP52s, Mini Maxis and Volvo Ocean Race Yachts.
One of the reasons for choosing SR Structures for this project was the company's ability to offer a personalized service. Unlike large industrial structures already involved in large-scale projects, SR Structures guarantees its customers priority follow-up, a major asset for complex projects like the Lift 45.
Design optimized for performance
Inspired by the latest generations of Class40 yachts, the Lift 45 adopts a scow hull design for better handling at high speeds and less abrupt deceleration in waves. Optimization of dynamic trim and mass centering was achieved through an extensive campaign of numerical simulations (CFD), with over 120 hull shapes tested.
Naval architecture is based on a number of innovations designed to improve stability and upwind efficiency:
- A pivoting keel made from a mix of high-strength cast iron and lead to optimize the center of gravity and reduce hydrodynamic drag.
- A higher rig than a Class40, increasing sail area to compensate for the extra weight of cruising equipment.
- Side ballast tanks totalling 800 liters on each side, offering a righting moment close to that of a latest-generation Class40.
A construction process inspired by racing prototypes
The Lift 45 benefits from a careful construction method derived from ocean racing standards. Unlike conventional methods where the sandwich (outer skin + core + inner skin) is infused in a single operation, SR Structures adopts a three-stage approach:
- Infusion of the outer skin, ensuring optimal control of the fiber/resin ratio.
- Installation and vacuum bonding of the preformed structural core.
- Stratification and infusion of the inner skin.
This process guarantees rigorous weight control, limiting excess resin consumption and reducing the overall weight of the boat by around 400 kg compared to initial estimates.
A layout designed for the open sea
Inside, the Lift 45 features a light, functional layout. The voluminous hull accommodates three spacious cabins, including an owner's cabin with a standard 140x200 cm double bed. A large saloon with sleeping berths, an L-shaped galley and a chart table are also part of the equipment designed for ocean cruising. The entire boat is made of varnished carbon composite, combining lightness and rigidity.
Equipment is also much more extensive than aboard a totally bareboat Class40. These include a 60 hp engine (compared with 28 hp on a Class40), a pressurized water system and a refrigerator. These additions are designed to make the boat more versatile and suitable for extended sailing.
Launch in spring 2025
The first Lift 45 is due to be launched in spring 2025. Once launched, she will embark on an ambitious sailing program, including the Fastnet Race, the Middle Sea Race and the RORC Transatlantic Race.
In addition, SR Structures is already working on an IRC-optimized version of the Lift 45, aimed at owners looking for a fast, competitive ocean-racing yacht. This version could incorporate a specific sail plan and keel to maximize ratings.
