![](http://www.alamy.com/thumbs/6/A40A00B7-5426-480C-90F7-3B37526DB610/2GGBNDC.jpg)
The T700 engine evolved directly from Army experience in the Vietnam War's difficult operating conditions that created helicopter engine maintenance problems. GE won the 1971 power plant competition for the proposed Utility Tactical Transport System (UTTAS) helicopter, with specifications for a high performance, low fuel consumption, reduced maintenance, and combat damage resistant engine. This is one of the experimental engines used in the UTTAS rotorcraft competition in 1974.
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Photo credit: © Heritage Images / Alamy / Afripics
License: Licensed
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