Rolls Royce Pearl engine makes testing progress


The Rolls-Royce Pearl 10X engine development program has successfully accumulated more than 1,000 testing hours on the Advance 2 demonstrator and the Pearl 10X engine configuration.

Designed to meet the performance requirements of the Falcon 10X, Dassault’s flagship business jet, the Pearl 10X will need to be 100% compatible with sustainable aviation fuel (SAF).

The development program has already included testing of an ultra-low emissions ALM combustor and a new accessory gearbox.

Thanks to an Advance 2 engine core and a high performance low-pressure system, the Pearl 10X offers more than 18,000lbf of thrust, low noise, low emissions performance, and a 5% reduction in specific fuel consumption (SFC) compared to its predecessors.

Dirk Geisinger, director of business aviation at Rolls-Royce said, “The combination of highly efficient power and the environmental performance of the Pearl 10X is in a class of its own and will support Dassault’s Falcon 10X in setting new standards in the ultra-long-range corporate jet market.”

The Pearl 10X will includes an efficient blisked fan, a two-stage shroudless high-pressure turbine, and a four-stage low pressure turbine,  housed in an advanced composite, ultra-slimline, ready-for-assembly nacelle provided exclusively by Spirit Aerosystems.

Having surpassed target thrust levels on the first run, the next step for the engine’s development will be to enter the full powerplant, including nacelle, EBU and mount system, into the testing program.

Rolls-Royce will also mount the engine to a modified Boeing 747 for in-flight testing.

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Benedict is editorial assistant, social media manager and staff writer across several aviation, automotive and performance technology titles published by Mark Allen Business. He is a graduate of the University of Southampton and spends his free time organising comedy shows, playing basketball loudly and guitar quietly.

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