Q. In context with the evolution of fighter jets, consider the following statements:
  1. The Messerschmitt Me 262 is considered the first operational jet fighter.
  2. The F-14 Tomcat is renowned for its variable-sweep wing design.
  3. The F-22 Raptor was the first fifth-generation fighter to enter service.
  4. The Chengdu J-20 is China's first stealth fighter jet.
How many of the above statements are correct?

Answer: All four
Notes: Thus, all four statements are correct.