Pratt & Whitney tests 3D-printed TJ150 engine with 60% additive parts

Pratt & Whitney, a business unit of RTX (NYSE: RTX), announced the completion of demonstration testing for an additively manufactured version of its TJ150 engine, according to a company statement released at the Farnborough International Airshow in London.

Nearly 60% of the engine by volume was produced through additive manufacturing, including major static and rotating hardware. Testing focused on validating material behavior in an operational environment and demonstrating durability consistent with mission requirements.

The company said it has consolidated more than 50 individual hot section components into a smaller number of additively manufactured parts and has tested a 3D-printed rotating turbine wheel as part of the development effort.

Jill Albertelli, president of Military Engines at Pratt & Whitney, said the approach is intended to accelerate production timelines for expendable engines. "For expendable engines like the TJ150, where missions can last minutes or hours, simplifying the design and scaling production quickly is essential to meeting rising demand," she said. "Additive manufacturing helps us move designs from concept to capability faster, and we are leveraging what we learned on the TJ150 to benefit other programs, including the Pratt & Whitney Valox™ engine family."

The TJ150 is classified as an expendable engine, a category typically used in single-use or limited-use applications. Pratt & Whitney did not specify a production timeline or contract details in connection with the announcement.

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