Tag: Powerplant

USAF F-35As Will See Engine Upgrades Instead of New Adaptive Engines

Aviation Week reports that the US Air Force “has decided not to reengine its Lockheed Martin F-35s, ending a potential competition between GE Aerospace and Pratt & Whitney to equip the fleet with a new powerplant.” Its fiscal 2024 budget request “ends funding for the Adaptive Engine Transition Program,” which was a competition between GE Aerospace and Pratt & Whitney to build a new adaptive engine for the F-35 fighter platform.
More Info (Aviation Week)

GE Aerospace Continues to Urge USAF to Procure New Powerplant for F-35

FlightGlobal reports, “GE Aerospace is continuing to press the US Air Force (USAF) to procure a new powerplant for Lockheed Martin’s F-35 fifth-generation fighter, rather than opting to perform core upgrades on the existing F-35 powerplant.” GE Aerospace claims that its XA100 adaptive-cycle engine, built for the F-35 under the USAF’s Adaptive Engine Transition Program, provides “transformational benefits” in range, thrust, acceleration and fuel consumption. GE Edison Works General Manager David Tweedie said on February 16, “We really think AETP clearly is the solution. And we are ready to meet that challenge and continue to move forward.” According to FlightGlobal, this “push comes ahead of the expected release in March of President Joe Biden’s fiscal year 2024 budget proposal – a document that could reveal the Pentagon’s plans for addressing shortfalls with the F-35’s existing, P&W-made F135 powerplant.”
More Info (FlightGlobal)

Pratt & Whitney Moves Ahead on F-35 ECU Program

Aviation Week reports that Pratt & Whitney now “has 400 engineers working on a major upgrade for the F135 engine that powers the Lockheed Martin F-35, as the company waits for congressional approval of the formal program go-ahead in fiscal 2024.” The team assigned “to the Engine Core Upgrade (ECU) program has been funded with previous congressional add-ons to the fiscal 2023 budget that now total $180 million in awarded contracts, including a $66 million award announced on July 11, says Jill Albertelli, president of Pratt’s military engines business.” The awards are funding work “on early architecture studies and engineering preparation for the preliminary design review, Albertelli said.” Both efforts have been “launched as Congress considers the Pentagon’s request to launch full development of the ECU program in fiscal 2024.”
Full Story (Aviation Week)

Pratt & Whitney Cleared to Resume F-135 Engine Deliveries

Reuters reported that Raytheon Technologies Corp. said Friday that the US government has “cleared its Pratt and Whitney unit to resume deliveries of its F-135 engine for the F-35 fighter jet, after a halt was put in place in December following the discovery of a safety concern.” In a statement, the F-35 Joint Program Office (JPO) said that its “engineers worked alongside Pratt & Whitney and Lockheed Martin to develop ‘mitigations for a rare system phenomenon involving harmonic resonance to develop a path forward for safe operation of the F135 in flight.’” The JPO added that the “actions the government and industry team are taking will ensure incorporation of mitigation measures that will fully address/resolve this rare phenomenon in impacted F135 engines.” The JPO also said that the “government was working on drawing up instructions for safely resuming flight operations for impacted and new production aircraft.”
Full Story (Reuters)