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Ahead of the curve: GE and the U.S. Army conduct T901 Preliminary Design Review

April 25, 2018
In early March, GE Aviation hosted the U.S. Army for the successful Preliminary Design Review (PDR) of the T901-GE-900 engine. The T901 is GE Aviation’s engine for the Improved Turbine Engine Program (ITEP), an undertaking to re-engine the U.S. Army’s Boeing AH-64 Apaches and Sikorsky UH-60 Black Hawks. The Army is in the process of down selecting to one engine manufacturer for the Engineering and Manufacturing Development (EMD) phase by the end of 2018.

The PDR is another major milestone for the T901 engine. In February, GE Aviation submitted the first phase of a proposal to the U.S. Army Contracting Command (ACC), based at Redstone Arsenal in Huntsville, Alabama. GE Aviation is currently preparing the second and final phase of its proposal based on the engine configuration reviewed at the PDR.

Built from four decades of proven performance on the T700 engine, the T901 continues GE’s tradition by offering reliable and maintainable solutions for the U.S. Army. This time it’s with a twist; the T901 incorporates many proven technologies that will advance Army Aviation into the future of vertical lift, including additive manufacturing, 3D aerodynamic design tools, ceramic matrix composites (CMCs), advanced cooling technologies and sand tolerant technologies. GE has spent decades developing and maturing these technologies in its commercial and military engines businesses.

The T901 turboshaft design, manufacturing, assembly and testing will be supported by our site facilities in Lynn, Massachusetts; Huntsville, Alabama; Newark, Delaware; Jacksonville, Florida; Loves Park, Illinois; Madisonville, Kentucky; Muskegon, Michigan; Hookset, New Hampshire; Asheville, North Carolina; Rutland, Vermont; and West Chester and Evendale, Ohio.

GE has invested more than $9 billion in maturing these commercial technologies and more than $300 million to develop and test turboshaft-specific technologies ahead of the PDR. GE funded and successfully completed testing of a T901 prototype engine, as well as component tests. These investments demonstrate GE’s commitment to providing only the most advanced technologies available to the Warfighter and the Department of Defense.

For more information and to learn more about the capabilities of the T901, visit

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GE Aerospace is a world-leading provider of jet and turboprop engines, as well as integrated systems for commercial, military, business and general aviation aircraft.