PARIS, — June 14, 2026 : Rolls-Royce Power Systems will unveil a new hybrid propulsion system for heavy military tracked vehicles at Eurosatory 2026, taking place in Paris from June 15 to 19. The system, which will be presented on June 15 at the company’s stand in Hall 6, is the latest addition to the mtu Series 199 engine family.
The hybrid powertrain combines a high-performance diesel engine with battery-electric drive components and is designed to support reduced fuel consumption during standby operations, lower thermal and acoustic signatures, and improved operational flexibility.
Expanded mtu Series 199 Platform
The mtu Series 199 platform now includes 6, 8, 10, and 12-cylinder configurations, covering a power range from 260 kW to more than 1,350 kW. The modular design enables the same engine architecture to be used across a wide range of military vehicles, including Main Battle Tanks (MBTs), Armoured Personnel Carriers (APCs), infantry fighting vehicles, and logistics platforms.
The platform is suitable for both new vehicle programs and modernization of existing fleets. Rolls-Royce says the common architecture simplifies maintenance, spare-parts supply, and logistics while reducing lifecycle costs.
Hybrid System Capabilities
The hybrid propulsion system integrates a diesel engine, electric motor, and battery storage unit.
Key capabilities include:
- Silent Watch: Batteries power onboard electronics, sensors, and active protection systems without running the main engine, reducing acoustic and thermal signatures.
- Electric Drive Mode: The vehicle can operate on electric power alone at low speeds for quieter movement.
- Acceleration Boost: The electric motor provides additional power during combined operation, improving mobility and responsiveness.
The batteries are recharged by the diesel engine during normal driving operations. Rolls-Royce has designed the hybrid powerpack to remain compact, preserving internal space for crew and mission equipment.
Existing Applications
The mtu Series 199 engine family is already used in several military vehicle programs, including the Boxer 8x8 armored transport vehicle, ACSV (Armoured Combat Support Vehicle), ASCOD infantry fighting vehicle, and Polish Borsuk amphibious infantry fighting vehicle.
More than 4,500 Series 199 engines have been delivered to 16 NATO member states and allied nations.
Rolls-Royce said the new hybrid variants and expanded engine range are intended to address the increasing weight of modern combat vehicles and the growing electrical power demands of advanced onboard systems. The company will also showcase the new 10-cylinder variant, which delivers more than 1,100 kW, during the exhibition.
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