Here are some examples:
* Mikoyan-Gurevich MiG-21 "Fishbed": This Soviet-era jet fighter was widely used and still serves in some air forces.
* Mikoyan-Gurevich MiG-25 "Foxbat": Another Soviet jet with a high top speed, powered by turbojet engines.
* Chengdu J-7 "Fishbed": This is a Chinese copy of the MiG-21.
* North American F-100 Super Sabre: A supersonic fighter jet used extensively by the United States Air Force in the 1950s and 1960s.
* Convair F-102 Delta Dagger: A supersonic interceptor jet used by the USAF, also powered by a turbojet.
Why are turbojets less common in modern fighters?
* Fuel efficiency: Turbofan engines, which use a fan to increase air intake and efficiency, are significantly more fuel-efficient than turbojets. This is crucial for modern fighter jets, which need to operate for longer periods and carry more weapons.
* Thrust: While turbojets offer high thrust for takeoff and acceleration, turbofan engines can provide similar thrust with lower fuel consumption.
* Noise: Turbojets are much louder than turbofan engines, making them less desirable for modern air forces.
However, turbojets still have some advantages:
* Simplicity and reliability: They are relatively simple and robust engines, making them easier to maintain and repair.
* High thrust-to-weight ratio: This makes them suitable for supersonic flight and high-performance maneuvers.
The Future:
While turbojets have largely been replaced by turbofans in modern fighter jets, there are still some applications where they may be used, like experimental or specialized aircraft.
