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Rolls-Royce Begins Tests on New Small Engine to Advance Hybrid-Electric Flight

Our Bureau - : Jun 19, 2023 - : 12:16 pm

Rolls-Royce has announced that a new small gas turbine specifically developed to power hybrid-electric flight is set to begin testing.

The engine is part of a turbogenerator system being developed for the Advanced Air Mobility market, including electrical vertical take-off and landing (eVTOL) Aircraft for Urban Air Mobility and commuter aircraft applications up to 19 seats.

Olaf Otto, President – Electrical, said “Rolls-Royce will be the leading provider of all-electric and hybrid-electric power and propulsion systems for Advanced Air Mobility. The Pass-To- Test (PTT) of our brand-new small engine that will power our turbogenerator system is an important step forward. This product will enable our customers to extend the routes that electric flight can support and means more passengers will be able to travel further on low to net zero emissions aircraft.”

The turbogenerator system will complement the Rolls-Royce Electrical propulsion portfolio by delivering an on-board power source with scalable power offerings between 500kW and 1200kW enabling extended range on sustainable aviation fuels (SAF) and later, as it becomes available, through hydrogen combustion.

This will open up new, longer routes than electric battery powered aircraft can support as of today.

The development of the turbogenerator system is combining Rolls-Royce’s electrical and gas turbine development competencies. The new combustion engine uses recent technology developments to achieve a step change in efficiency of small gas turbines. The turbogenerator can be used in serial or parallel hybrid applications. It is well suited to recharge batteries as well as provide energy to electrical propulsion units directly and therefore enables aircraft to switch between power sources in flight. The research and development of this technology is being partially funded by the German Ministry for Economic Affairs and Climate Action

Rolls-Royce is developing complete power and propulsion systems for all-electric and hybrid-electric applications. Our systems under design feature the latest technology, from power generation and energy storage via power electronics and control systems to electric motors.

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