GE CF6 engine remains longest-running in aviation history

The GE CF6 is the longest-running aircraft engine currently in use. It has been in operation since the early 1970s and is still manufactured for cargo and military transport planes. The CF6 family of high-bypass turbofan engines was designed primarily for widebody commercial aircraft. Notable planes using this engine include the Boeing 747, Boeing 767, and Airbus A330. The CF6 features several variants, with the CF6-80C2 being the most popular and widely used model today. Originally based on the TF39 engine, which powered the Lockheed C-5 Galaxy, the CF6 has evolved significantly over time. For example, the latest models offer much higher thrust and improved fuel efficiency compared to earlier versions, making them competitive in the freighter market. As demand for cargo flights grows, GE Aerospace continues to produce the CF6, with an expected output of around 60 engines annually. This engine family is expected to remain in service until at least 2050. In addition to its aviation applications, the CF6 has variants used in naval and industrial settings, particularly as the LM2500 gas turbine engine. This engine is versatile and powers various military ships and civilian vessels, including the Queen Mary 2 cruise liner. Overall, the GE CF6 has become a crucial part of both modern aviation and maritime industries.