General Electric F110
aircraft engine
The General Electric F110 is an afterburning turbofan jet engine produced by GE Aerospace (formerly GE Aviation). It was derived from the General Electric F101 as an alternative engine to the Pratt & Whitney F100 for powering tactical fighter aircraft, with the F-16C Fighting Falcon and F-14A+/B Tomcat being the initial platforms; the F110 would eventually power new F-15 Eagle variants as well. The engine is also built by IHI Corporation in Japan, TUSAŞ Engine Industries (TEI) in Turkey, and Samsung Techwin in South Korea as part of licensing agreements.
The F118 is a non-afterburning variant of the F110 that powers the Northrop B-2 stealth bomber and Lockheed U-2S reconnaissance aircraft.
Design and development
The F110 emerged from an intersection of efforts in the 1970s by General Electric to reenter the U.S. fighter engine market and the U.S. Air Force's desire to address the reliability, longevity, and maintenance issues with the Pratt & Whitney F100 engines that powered its F-15s and F-16s. In 1975, General Electric used its own funds to begin developing the F101X, a derivative of its F101 engine for the B-1 bomber; the F101X would inherit much of the core design while having a smaller fan that was upscaled from the F404 so that its thermodynamic cycle and thrust were better suited for a fighter engine. The convergent-divergent iris nozzle was also derived from the F404.
The cancellation of the B-1A by the Carter Administration (in lieu of the Advanced Technology Bomber which became the B-2) meant a loss of business for General Electric, and provided further impetus to provide the F101X for the fighter engine market. The engine attracted the interest of the Air Force's Engine Model Derivative Program (EMDP), and in 1979 began funding it as the F101 Derivative Fighter Engine, or F101 DFE. The Air Force saw the F101 DFE as a potential alternative to the F100 and also a way to coerce better performance from Pratt & Whitney in addressing issues with the F100.
Following the completion of ground tests in 1980, the F101 DFE was first fitted on an F-16 for flight testing, where it showed considerable improvement in performance and operability over the existing F100.
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