GX Superyachts is presenting the GX42 at the Monaco Yacht Show. As the first model in its new 42-metre series, it also makes a statement about a new lifestyle. Designed by Marco Casali.
It doesn’t take long for the GX 42 at Port Hercule to fill up. So many journalists and other guests have accepted the invitation to the viewing that the lounge and dining area on the huge upper deck are soon filled to capacity. The advance information promised a number of special features – including the design – and the visitors are clearly keen to see these for themselves.
During the presentation, it quickly becomes clear that the GX 42 combines solutions which, whilst established individually within the industry, remain unusual when combined on a yacht of this size. At the heart of the 42-metre yacht lies an integrated energy architecture. The propulsion system, power generation, battery storage, solar power and the yacht’s energy requirements are all part of the same system. “Efficiency should be integrated into the yacht from the outset, rather than added retrospectively through individual technologies,” says Vladimir Zinchenko, CEO and founder of GX Superyachts.
Parallel hybrid drive system
Furthermore, this approach creates a quiet, comfortable environment. A sense of well-being at sea characterised by tranquillity and serenity. Zichenko: “For us, this is the true innovation of the GX 42 – technology that enhances the experience without becoming the experience itself.”
Unlike a series hybrid, in which diesel engines generate electricity and the vehicle is powered electrically, the GX 42 features a mechanical connection between the MAN main diesel engines and the propeller shafts. Electric motors are integrated into the powertrain, enabling them to operate in combination or independently, depending on the operating mode.
The conventional diesel engine provides the power for long-distance cruising and when higher power is required, whilst the electric system supports operation under lighter loads and in hybrid mode. The electric motors therefore also contribute to the yacht’s energy supply.
Energy storage system with 24 battery modules
A lithium iron phosphate (LFP) battery system underpins this architecture, with a rated capacity of approximately 938 kWh, comprising 24 battery modules, each with a capacity of approximately 39.1 kWh. Instead of running a generator whilst at anchor, the stored energy powers the hotel’s operations. This results in a significantly quieter and less vibrating life on board, particularly at night. GX Superyachts states that the yacht can operate emission-free for up to 48 hours whilst at anchor.
The photovoltaic system generates approximately 27 kWp; the panels are integrated into the upper surfaces. It also meets the on-board power requirements and charges the batteries. This means that less energy needs to be generated from fuel.
Efficiency starts with the hull of the GX 42
The GX 42 was designed around a sleek hull built for long-distance cruising. An economical cruising speed is 9 knots – giving a range of 5,000 nautical miles. The conventional propulsion system allows for higher cruising speeds, whilst remaining very economical: at twelve knots, the system consumes just 68 litres per hour. A top speed of 17 knots is possible.
Marco Casali says that “the design has a huge impact on sustainability”. The yacht’s shape alone – “long with a flat profile” – makes it stable and means it uses less energy. He is “very happy” with the result. Anyone who sees the yacht in the water would understand that “we’re doing something completely different here.” Something that, ultimately, you’re also doing for your children.
GX 42: a relaxed life on board
This holistic approach runs throughout the design. Marco Casali’s interior and exterior design has translated the yacht’s philosophy into a relaxed ambience that is entirely geared towards the lifestyle of a large family. The first GX 42 is a Raised Pilot House version with a curved superstructure and a flat upper deck. This configuration creates space for a full-width owner’s suite on the main deck, complete with a private foredeck terrace. The lower deck houses a VIP suite with a fold-out balcony, as well as three further guest cabins.
Casalis’s design language reflects the natural, understated character of the drive system and technology. Walnut, leather, stone and neutral fabrics create a warm and tactile environment, whilst large-radius curves dominate the spaces: ceiling recesses, sofas, mirror frames and built-in furniture.
A family yacht rather than a showboat
Backlit marble, liquid metal panels and selected works of art add distinctive touches, whilst floor-to-ceiling windows make the most of natural light. Direct and indirect lighting from Ultra Luce allows the ambience to be transformed from bright and convivial to intimate and relaxed.
“This isn’t a showboat designed to flex its muscles. We’ve worked closely with the owners to realise their priorities for a family-friendly design and longer stays,” says Marco Casali. “We’ve created an interior that aligns with GX Superyachts’ principles of responsible travel.”
Uske Berndt
Editor News & Panorama