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Lockheed Martin Sikorsky-Boeing Team Picks Honeywell Engine for DEFIANT X

Lockheed Martin Sikorsky-Boeing Team Picks Honeywell Engine for DEFIANT X

Honeywell’s newest and most advanced turboshaft engine – the HTS7500 – will fly on the new DEFIANT X helicopter, the Lockheed Martin Sikorsky-Boeing entry in the U.S. Army’s Future Long-Range Assault Aircraft (FLRAA) competition. 

“We’re proud and excited the Sikorsky-Boeing team chose our next-generation helicopter engine for the DEFIANT X,” said Ricky Freeman, President, Defense and Space for Honeywell Aerospace. “The HTS7500 is the latest and greatest in a long line of Honeywell engines that have powered military helicopters for nearly 70 years. The HTS7500 checks all the boxes for the Lockheed Martin Sikorsky-Boeing team and the Army.” 

“The Army has high expectations for the FLRAA, an assault-utility helicopter that needs to fly twice as fast and twice as far as the legendary UH-60 helicopter it’s intended to replace. Meeting those requirements will take a turboshaft engine as powerful, reliable and innovative as the new aircraft itself,” said Dave Marinick, President, Engines & Power Systems at Honeywell Aerospace.

“The HTS7500 takes engine performance and efficiency to an entirely new level,” he added. “It is based on the architecture of our proven T55 engine, which is great for maintainers in the field, but its capabilities far exceed those of the T55-714A engines we’re producing today. The HTS7500 will give the DEFIANT X the power it needs to fly low, fast and far, land quickly, and evade the enemy under the toughest possible operating conditions.

Honeywell’s newest military helicopter engine is 42% more powerful than the current version of the T55 engine and offers the lowest total weight compared to other engines in its horsepower class. It also delivers an 18% reduction in fuel consumption and costs less to maintain and support than current-generation turboshaft engines.

The FLRAA is expected to enter service around 2030 with a life expectancy as long as 50 years. As part of the broader Future Vertical Lift (FVL) initiative, FLRAA will provide the Army and other operators an extremely versatile aircraft that can accomplish a wide range of missions including tactical assault, medium-lift and medical evacuation.

With these capabilities – and more – the Army will be able to maintain its technology edge and ensure its readiness to counter any transregional, multi-domain and multifunctional threats U.S. servicemembers will face in the decades to come.

“I speak for all Honeywell employees when I thank the Lockheed Martin Sikorsky-Boeing team for the opportunity to deliver the best helicopter engine in the world to power the DEFIANT X to levels of performance that have been unimaginable until now,” Marinick concluded.       

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