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Hermeus to Manufacture F100-PW-229 Engines

September 15, 2026

2 min read

Key Takeaways

Hermeus to manufacture Pratt & Whitney's F100-PW-229 engine.
Agreement accelerates Quarterhorse aircraft production.
Expands US capacity to build combat-proven fighter engines.
Hermeus will produce engines using rapid-build production model.

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Strategic Implications

This partnership may indicate a significant expansion of the US defense industrial base, as Hermeus becomes a qualified production source for the F100 engine. The agreement could strengthen the US's ability to meet growing customer demand for combat-proven fighter engines, and suggests a growing trend towards collaboration between established defense contractors and innovative startups.

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What Happened

New Production Licensing Agreement Expands US Defense Industrial Base

Hermeus has announced a Production License Agreement with Pratt & Whitney, authorizing the company to manufacture F100-PW-229 engines, one of the US military’s most widely fielded fighter propulsion systems. The agreement is expected to accelerate Quarterhorse aircraft production and expand US capacity to build combat-proven fighter engines. Hermeus will produce the engines using its rapid-build production model, while adhering to Pratt & Whitney’s global standards for quality, safety, and site activation, as reported by RTX.

Source | Originally Published: September 15, 2026

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