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Rolls-Royce reports progress with Pearl 10X engine development

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Rolls-Royce reports progress with Pearl 10X engine development
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Aviation International News | Aviation International News

Rolls-Royce has been conducting flight tests for the Pearl 10X turbofan, developed for the Dassault Falcon 10X business jet, on its Boeing 747 testbed. During a media briefing ahead of the 2024 Farnborough International Airshow, Rolls-Royce's business aviation director Dirk Geisinger stated that the 18,000-pound-thrust engine is exceeding projected performance targets and has surpassed thrust levels since its initial test run.

The Pearl 10X integrates the Advance2 engine core with a high-performance low-pressure system, marking it as Rolls-Royce's highest-thrust turbofan for business aircraft applications. The engine also boasts a 5% improvement in specific fuel consumption compared to previous generations. To date, the Advance2 demonstrator core and the Pearl 10X have accumulated over 2,500 flight hours and completed 7,700 cycles.

Geisinger highlighted that Pearl engines incorporate combustor tiles that enhance cooling efficiency by 20%, improving high-pressure turbine performance. These tiles are produced using additive-layer manufacturing techniques, reducing design and manufacturing time by 75%.

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Geisinger also reported a seamless entry into service for Rolls-Royce’s Pearl 700 engines on Gulfstream’s G700 aircraft. By July 11, twelve G700s had logged a combined total of 750 flight hours, including a nonstop journey from New Zealand to Teterboro Airport near New York City, utilizing the jet’s full range of 7,750 nautical miles.

Rolls-Royce is assisting Gulfstream in completing type certification for the G800 aircraft with an expected service entry later this year. Production of Pearl 700 turbofans has been ramped up to support this program.

According to Geisinger, about three-quarters of new Rolls-Royce engines for business aircraft are enrolled in its CorporateCare power-by-the-hour maintenance program. This support is provided through over 85 authorized service centers worldwide, ten parts stores, and more than seventy-five on-wing services technicians. Additionally, more than two hundred fifty engines and nacelles are available for lease under this program.

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