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Hermeus to manufacture Pratt & Whitney's F100-PW-229 engine under new production licensing agreement

$RTXPress releaseSep 15, 2026, 8:00 AM ETRead the release

Pratt & Whitney, an RTX business, and Hermeus have signed a Production License Agreement authorizing Hermeus to manufacture the F100-PW-229, one of the U.S. military's most widely fielded fighter engines, creating a new qualified U.S. production source. The F100 has powered the Air Force's F-15 and F-16 for more than five decades and logged more than 32 million flight hours; it also powers Hermeus' Quarterhorse, which achieved supersonic flight earlier this year as the first privately developed unmanned supersonic jet.

Key figures

Rtx employees
more than 180,000
Rtx 2025 sales
more than $88 billion
F100 flight hours
more than 32 million
F100 service tenure
more than five decades
Pw engines in service
more than 90,000

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