The HAL Tejas is a single-engine, lightweight, multi-role fighter aircraft developed by Hindustan Aeronautics Limited (HAL) for the Indian Air Force. It is a fourth-generation aircraft, featuring a relaxed static stability design, fly-by-wire flight control system, and advanced avionics. The Tejas is powered by a single General Electric F404-GE-IN20 afterburning turbofan engine and has a maximum speed of Mach 1.8.
The MiG-21, on the other hand, is a second-generation supersonic fighter aircraft designed by the Mikoyan-Gurevich Design Bureau in the Soviet Union. It was introduced in the 1960s and has served with air forces around the world. The MiG-21 is not considered a fourth-generation aircraft, as it lacks some of the advanced features that define fourth-generation fighters, such as a relaxed static stability design and fly-by-wire flight control system.
