From the G-model to the water: LETECH presents the LMT 4.5 - Exclusive first pictures!

The LETECH GmbH from Welzheim-Breitenfürst, previously known for special vehicles based on the Mercedes G-Class and the Ineos Grenadier, has developed its first watercraft, the LMT 4.5. The tender is aimed at owners of larger yachts who require a robust tender for transport between ship and shore. The manufacturer is focussing on the same principles as for its land vehicles: durability, functionality and production in Germany.

Marine aluminium construction

The hull is made of three millimetre thick marine aluminium. The material is not only particularly robust and at the same time pleasantly light, but also copes much better with salt water than conventional steel. This is precisely what makes it so interesting for use on the water.

The boat weighs in at just 385 kilograms. Overall, it measures 4.5 metres in length, with the actual hull measuring 3.75 metres. The boat is also 2.05 metres wide and 1.68 metres high.

Jet drive with 300 hp

The engine is a Rotax 1630 ACE-300 - for those who are not familiar with the name: Behind it is a turbocharged three-cylinder engine with a whopping 300 hp. It revs up to 8,000 times per minute and is not driven by a classic propeller, but by a jet drive. This means: propulsion by a powerful jet of water instead of an external propeller.

The manufacturer claims a top speed of 50 knots, i.e. around 93 km/h. In conversation with owner Andreas Lennartz, however, it quickly becomes clear that there is much more to it than that. At some point, however, the whole thing simply becomes almost impossible to control. Nevertheless, the 100 km/h mark has already been broken during test drives. The comfortable cruising speed is between 22 and 27 knots, depending on the conditions. The tank holds 70 litres of fuel.

With a driving weight of 385 kilograms and 300 hp, this results in a power-to-weight ratio of just 1.28 kilograms per hp. This is where it becomes clear that this boat is definitely on the sporty side.

For comparison: A Sea-Doo GTR-X 300 is already considered a real performance device on the water and only weighs around 25 kilograms less than the boat itself. Nevertheless, its power-to-weight ratio is around 1.2 kilograms per horsepower. This shows quite clearly what league the whole thing is in.

Safety equipment and storage space

The buoyancy chamber of the LMT 4.5 consists of a Hypalon tube with three independent air chambers. Hypalon is a synthetic rubber material that is particularly resistant to UV radiation, chemicals and mechanical stress. It is also currently the best and highest quality material that can be used for hose bodies. Thanks to the three separate chambers, the boat remains buoyant even if one chamber is damaged. The LMT 4.5 is approved to CE category C, which means that it is designed for sailing in coastal waters with wind forces of up to Beaufort 6 and wave heights of up to 2 metres.

Lighting and operation

A LETECH aluminium bracket is mounted on the boat, which carries additional lighting. The surface is powder-coated to prevent corrosion. Integrated storage compartments provide space for equipment and personal items.

The boat was presented at the Ancora Yacht Festival 2026. We have not yet undertaken a BOOTE test, but are in contact with the manufacturer and are in the planning stage.

Technical data:

• CE category: C
• Length over everything: 4500 mm
• Hull length: 3750 mm
• Width: 2050 mm
• Height: 1680 mm
• Depth: 400 mm
• Weight: 385 kg
• Fuel tank: 70 l
• Motor: Rotax 1630 ACE-300
• Performance: 300 hp / 220 kW at 8000 rpm
• Drive: Jet
• Maximum speed: at least 50 knots
• Marching trip: 22-27 knots
• Buoyancy body: Hypalon hose with 3 independent air chambers
• Hull material: Marine aluminium 3 mm