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Why is the tail flame of F 1 19 engine of F22 like this?
A typical picture used to display one of the functions of the two-dimensional vector thrust control system. This picture was taken during the ground test of the F 1 19 aero-engine used by the American F22 Raptor. As for the picture itself, it is an ideal picture obtained by using professional shooting technology. The purpose is to visually display the performance characteristics of two-dimensional vector thrust control system in tactical maneuvers.

Correct LZ's mistakes. There is no such thing as a two-dimensional thrust vector engine. [Vector Thrust Control Technology] is an advanced aviation technology. It is designed and installed on the engine, which can greatly improve the air maneuverability of fighter aircraft. It can be regarded as a part of the engine, but the classification of the engine is not determined by the existence of vector thrust control technology.

By controlling the vector thrust blade of the tail nozzle, the flow direction of the engine tail flame is changed to "steering"

The answer to the last question is yes, because the F 1 19 engine used by the F22 fighter does use an engine with the function of [two-dimensional vector thrust]. However, the vector thrust technology is not only two-dimensional, but also three-dimensional vector thrust technology is used by fighters at present.