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How to evaluate al3 1 series engines?
Taihang engine is generally stronger than AL-3 1 engine. Taihang has a slight advantage in thrust-to-weight ratio and maximum afterburner thrust.

AL-3 1FN has better acceleration, air start envelope and ground start time than Taihang engine. At present, the ground start-up time of turbofan-10 is about 90 seconds, and that of AL-3 1FN is only one minute. The lower speed limit of windmill starting after the plane stops in the air is about 600 km/h for Taihang engine and 450 km/h for AL-3 1FN. In terms of acceleration performance, AL-3 1FN can speed up in 5 seconds, and Taihang engine needs more than 5 seconds.

The fourth generation aero-engine AL-3 1F is called "uncle" by many "nonsense" military fans. It is a turbofan engine with afterburner developed and produced in Russia. In fact, from this type of engine, it can be found that there is no problem for a mature engine to continue to use for more than 20 years. Because the AL-3 1F engine has been produced for more than 20 years.

In the 1990s, Salute Company (with a strange name) provided the first batch of AL-3 1F for the former Soviet Air Force, and installed it on Su -27 fighters with double release boards. Although Salute has carried out product quality tracking, preventive maintenance and regular maintenance, the maintenance measures cannot guarantee the permanent use of the engine.