A low-voltage retrofit solution for F4 catamarans
The structure of the project is based on an existing boat: an F4 racing catamaran from the international inshore sector. This boat, already designed for speed and maneuverability on technical circuits, is equipped here with a low-voltage electric drive train. The choice of 48-volt technology limits integration constraints, while guaranteeing safety for operators and mechanics.
Molabo's ARIES motor delivers 50 kilowatts (67 hp) of power, maintaining the performance expected of this class of boats, where speeds approach 130 km/h. The whole package fits into a plug-and-play unit, specially developed to fit into the slot of a conventional outboard engine.
Mass control and battery modularity
One of the major technical issues in this development was the weight of the batteries. The design office, headed by Jürgen Kaiser, opted for high energy density modules in a compact format, integrated into a modular architecture. This arrangement enables rapid exchange between two runs, for off-boat recharging. The structural anchoring was adapted to the requirements of dynamic load distribution.
Power-adjustable motorization: towards safe training
Software control of engine power is a major step forward in the training of young pilots. By adapting torque and maximum speed to the pilot's experience, the technology paves the way for pedagogical use in driving schools. This approach could also introduce new racing formats with dynamic handicaps.
Zero emissions and low costs: a model for clubs and circuits
By eliminating local emissions and reducing noise pollution, this prototype meets growing expectations on inland waterways. Simplified maintenance, reduced operating costs and access to adjustable propulsion make this a viable solution for associations and small national circuits.
Sporting and industrial prospects for the electrical sector
This initiative could serve as a springboard for a new electric one-design competition. The timetable foresees a first appearance at the Monaco Energy Boat Challenge on July 3, 2025, followed by a record attempt at the Grand Prix de l'eau in Mons, Belgium, August 21-24, 2025. Discussions are underway to consider a championship as early as 2026.
