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Lockheed Martin Backs AETP for F-35 Block 5 and Above; Pratt & Whitney Pushes Back

Frank Wolfe Frank Wolfe
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Lockheed Martin Backs AETP for F-35 Block 5 and Above; Pratt & Whitney Pushes Back
On April 12, Poland’s Prime Minister Mateusz Morawiecki toured Lockheed Martin’s Marietta, Ga. assembly line, which is supplying the first components for Poland’s F-35As. During the visit, the prime minister signed the bulkhead of Poland’s first F-35A Lightning II, Lockheed Martin said (Lockheed Martin Photo)

Lockheed Martin [LMT] is suggesting that its F-35 fighter will need an Advanced Engine Transition Program powerplant or something akin to it for Block 5 and above of the F-35. "AETP technologies deliver more power and greater cooling capability, which is required as we modernize the F-35 beyond Block 4," the company said on June 21st. That contention received push back from Raytheon Technologies' [RTX] Pratt & Whitney unit, which makes the F-35's F135 engine and is embarking upon an…

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