GE offers improved turbine engine with metal AM parts to the U.S. Army

July 23, 2018

July 23, 2018

GE offers improved turbine engine with metal AM parts to the U.S. Army

GE Aviation’s T901-GE-900 engine is being offered to the U.S. Army (Courtesy GE Aviation)


GE Aviation, Evendale, Ohio, USA, reports that it has submitted the second and final phase of its Engineering and Manufacturing Development (EMD) proposal to the U.S. Army. GE is offering its T901-GE-900 engine for the Improved Turbine Engine Program (ITEP), the U.S. Army’s effort to re-engine its Boeing AH-64 Apaches and Sikorsky UH-60 Black Hawks.

The T901 is said to incorporate a number of proven technologies, among them metal Additive Manufacturing, which GE has used to create advanced, cost-effective parts with shorter development times which reduce fuel burn, decrease weight and increase durability. Using metal AM, GE Aviation states that it has been able to consolidate parts which comprised fifty-one pieces on its former T700 engine to just one integrated part on the T901, resulting in a 20% reduction in weight.

In June, the Army and GE successfully completed their Preliminary Design Review (PDR), achieving approval of GE Aviation’s design and configuration of the T901 engine. PDR completion is said to be a major milestone within the Technology Maturation and Risk Reduction contract – a $102 million, 24-month contract awarded to GE by the Army in September 2016. The U.S. Army Contracting Command, based at Redstone Arsenal in Huntsville, Alabama, USA, plans to select one engine manufacturer for the EMD phase by the end of 2018.

GE stated that it has invested more than $9 billion in maturing technologies applicable to the T901 and over $300 million on the development and testing of turboshaft-specific technologies. The company has funded and successfully completed testing on a T901 prototype engine, as well as tests on all components of the engine, to prove that it meets or exceeds the Army’s ITEP requirements.

Ron Hutter, Executive Director of the T901 Programme, stated, “Using GE’s industry-leading technologies, rather than mechanical complexity, to meet ITEP requirements enables the use of a single-spool design, making the T901 engine less complex, less expensive, and lighter weight. The T901’s single-spool core enables full modularity, building on the success of the combat proven T700 and providing the Army superior fix-forward maintainability, reduced life-cycle costs and improved Warfighter readiness.”

With fewer parts and a simpler design, the T901 is said to be more reliable and more maintainable. The fully modular design also offers superior growth potential at a lower cost through incremental improvements to engine modules, which could present a significant advantage for meeting FVL requirements as they develop. GE Aviation and the US Army successfully installed a full-scale T901 engine mock-up into an Apache and a Black Hawk in December 2017, demonstrating its to integrate into both airframes.

July 23, 2018

In the latest issue of Metal AM magazine

Download PDF

Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • Metal powders in Additive Manufacturing: An exploration of sustainable production, usage and recycling
  • Inside Wayland Additive: How innovation in electron beam PBF is opening new markets for AM
  • An end-to-end production case study: Leveraging data-driven machine learning and autonomous process control in AM
  • Consolidation, competition, and the cost of certification: Insight from New York’s AM Strategies 2024
  • Scandium’s impact on the Additive Manufacturing of aluminium alloys
  • AM for medical implants: An analysis of the impact of powder reuse in Powder Bed Fusion

The world of metal AM to your inbox

Don't miss any new issue of Metal AM magazine, and get the latest industry news. Sign up to our twice weekly newsletter.

Sign up

Discover our magazine archive…

The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:

  • Reports on visits to leading metal AM part manufacturers and industry suppliers
  • Articles on technology and application trends
  • Information on materials developments
  • Reviews of key technical presentations from the international conference circuit
  • International industry news

All past issues are available to download as free PDFs or view in your browser.

Browse the archive

Looking for AM machines, metal powders or part manufacturing services?

Discover suppliers of these and more in our comprehensive advertisers’ index and buyer’s guide, available in the back of Metal AM magazine.

  • AM machines
  • Process monitoring & calibration
  • Heat treatment & sintering
  • HIP systems & services
  • Pre- & post-processing technology
  • Powders, powder production and analysis
  • Part manufacturers
  • Consulting, training & market data
View online
Share via
Copy link
Powered by Social Snap