I think you misunderstood, 30 years from piston powered to jets that are still being flown today. The F15 was introduced 27 years after the end of WW2, where al

I think you misunderstood, 30 years from piston powered to jets that are still being flown today. The F15 was introduced 27 years after the end of WW2, where all the fighters of consequence were piston powered.