GE F110 Engine: Specs & History
Ground crews can perform 90 percent of necessary repairs on the F110 engine directly on the wing, minimizing downtime for fighter squadrons. Derived from the F101, this engine powers key aircraft like the F-16 and the modern F-15EX. Explore its technical specifications, history, and advanced variants below.
What is the F110 engine?
The General Electric F110, produced by GE Aerospace, is a two-spool, low-bypass after burning turbofan that powers a wide range of air superiority and multirole fighters around the world. It was designed as a direct competitor to the Pratt & Whitney F100, drawing its core technology from the earlier GE F101. Engineers later adapted the design into a non-after burning variant, the F118, to meet different strategic requirements.
F110 engine history
The F110’s development started with the GE F101, an engine originally built for the B-1 bomber. During the “Great Engine War” of the 1980s, the US military was looking for a reliable alternative to existing fighter engines, mainly to cut life-cycle costs and improve fleet readiness.
GE Aerospace responded by developing a derivative first called the F101 DFE, which eventually became the F110. In 1984, the Navy chose the F110-GE-400 variant to re-engine the F-14 Tomcat. Two years later, the F110-GE-100 entered active service and quickly became the widely adopted standard for improving fleet reliability.
Which aircraft use the F110 engine?
The F110 powers Lockheed Martin F-16 Fighting Falcon fleets and serves as a performance upgrade for several Boeing F-15 Eagle variants. International operators rely heavily on these platforms as well. The Boeing F-15EX Eagle II and Türkiye’s TAI Khan both fly exclusively with the F110-GE-129, while Lockheed Martin proposed the F110-GE-132 for its F-21 project.
F110 engine specifications
The F110 is 182.3 inches long with a maximum diameter of 46.5 inches. It operates at an overall pressure ratio of 30.7-to-1 and produces after burning thrust that varies by variant. Block 30 and 32 F-16C jets use the F110-GE-100 specifically.
How the F110 engine works
The F110 runs on a two-spool cycle. Its axial-flow compressor pulls in 270 pounds of air per second, feeding the combustion chamber, while a three-stage Bliss fan accelerates bypass air to generate thrust.
Newer versions include full-authority digital engine control (FADE), which manages fuel flow continuously. Combined with advanced cooling, this digital control keeps the engine running reliably even in the most demanding combat conditions.
F110 engine variants and growth
Several F110 variants share common hardware to address evolving military needs. The original F110-GE-100 set the baseline and reduced risk for new aircraft programs. GE Aerospace later introduced the F110-GE-129 to replace older engines in specific high-demand airframes, and the F110-GE-132 pushes output further for heavier payloads. Newer models include hardware upgrades aimed at extending service life and maintaining operational capability.
F110 engine maintenance and SLEP
Keeping the F110 in service is relatively straightforward by fighter engine standards. Ground crews can handle 90 percent of repairs directly on the flight line without pulling the engine, so power plants typically only come off the wing for scheduled comprehensive servicing. The Service Life Extension Program (SLEP), validated through 6,000-cycle accelerated mission testing, improves maintainability, extends time-between-removals, and brings down long-term operating costs.
F110 engine global use
The F110 operates in 17 countries and has accumulated over 11 million flight hours. A partnership with MTU Aero Engines supports production and maintenance across these operators. Türkiye selected the engine to power the Khan fighter during its testing phase. The platform remains a fixture in military aviation markets worldwide, largely because of its service record.
F110 engine inlet and nozzle options
Unlike next-generation engines such as the F119, which use fully variable thrust-vectoring nozzles, the F110 relies on convergent-divergent exhaust systems. These variable nozzles convert engine pressure into forward thrust efficiently. On platforms like the F-16C, the F110 integrates with inlet designs such as the Modular Common Inlet Duct (MID), known as the “Big Mouth,” which handles the increased airflow the engine demands. Asymmetric thrust-vectoring nozzles have also been tested on this engine in experimental configurations.
