RTX's F135 Engine Achieves Milestone in Flight Hours
RTX's F135 Engine Reaches Over One Million Flight Hours
World's most advanced fighter engine continues to deliver on safety and readiness for global F-35 operators
Pratt & Whitney, an RTX (NYSE: RTX) business, has announced that the F135 engine has surpassed one million flight hours powering the F-35 Lightning II. This extraordinary milestone underscores the F135's reputation as the most capable, safest, and reliable fighter engine currently available, offering exceptional performance and cutting-edge low-observable technologies vital for fifth-generation aircraft.
"The F135 engine plays a critical role in maintaining global air superiority for the U.S. and its allies, as it enables the F-35 mission in even the most contested environments," said Jill Albertelli, president of Military Engines at Pratt & Whitney. This engine has powered every F-35 since its inception, displaying outstanding safety and readiness rates over nearly two decades. Achieving this significant accomplishment affirms the F-35's importance in modern defense operations and highlights Pratt & Whitney's dedication to supporting its customers and the warfighter.
The F135 engine represents a substantial leap in terms of performance and reliability, providing warfighters with the confidence that it is poised to meet the demands of various missions. It consistently exceeds full mission capability rate requirements of 94%, boasting an unparalleled safety record that is markedly superior compared to previous generations of fighter engines throughout their service life.
To sustain mission readiness, the F135 benefit from an extensive sustainment network that supports multiple global depot facilities, 36 bases, and 12 ships across international waters. This framework positions the F135 as a key enabler of Agile Combat Employment, a tactical military operational concept designed to enhance survivability while boosting combat power through a network of dispersed locations. This concept demands continuous logistical movement, efficiency, and specialized maintenance skills—all of which Pratt & Whitney can provide using the F135's global infrastructure.
As the F-35 undergoes modernization to incorporate new capabilities aimed at addressing emerging threats, expectations for the engine's performance will only increase. Pratt & Whitney's Engine Core Upgrade (ECU) aims to build upon the successful legacy of the F135 by integrating advanced technology insights from other engine programs. This upgrade promises the enhanced performance necessary to stay ahead of global adversaries.
Thus far, Pratt & Whitney has successfully delivered more than 1,300 F135 production engines to a collaborative network involving 20 allied nations worldwide. For further details regarding the F135 engine, please visit the Pratt & Whitney website.
About Pratt & Whitney
Pratt & Whitney is a global leader in designing, manufacturing, and servicing aircraft engines and auxiliary power units. To discover more about their offerings, visit www.prattwhitney.com.
About RTX
RTX employs more than 185,000 individuals globally and is at the forefront of technological advancements aimed at transforming how we connect and protect our world. Through its premier businesses—Collins Aerospace, Pratt & Whitney, and Raytheon—the company is enhancing aviation, engineering integrated defense systems, and developing next-generation technology solutions that address critical challenges faced by its global clientele. With more than $69 billion in sales, RTX operates from its headquarters in Arlington, Virginia.
Frequently Asked Questions
What is the significance of the F135 engine's one million flight hours?
The one million flight hours signify the F135 engine's reliability and capability in powering the F-35 fighter, establishing it as the safest and most efficient option available.
How does the F135 engine support military operations?
The F135 enables global air superiority by ensuring the F-35 can operate effectively in contested environments, providing operational readiness for military missions.
What upgrades are being implemented for the F135 engine?
The Engine Core Upgrade aims to enhance the F135's performance, incorporating advanced technologies to meet future operational needs and threats.
How does Pratt & Whitney ensure mission readiness for the F135?
Through an extensive sustainment network, Pratt & Whitney supports numerous facilities and bases globally, enhancing the F135's operational readiness and efficiency.
What countries use the F135 engine?
Over 20 allied nations around the world utilize the F135 engine, highlighting its global adoption and the trust placed in its capabilities by allied forces.
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