Hello
What-if the jet engine was available at different timelines…?
In these scenarios, practical jet engines are available either 20 years earlier (mid to late 1920’s) or 20 years later (mid to late 1960’s).
In these scenarios, all other aeronautical technologies are available at the same time as our timeline.
In such, we will see, for instance, in the first scenario, biplane jet fighters (in the late 1920’s and 1930’s) and, in the second scenario, swept-wing and missile armed piston-engine fighters in the late 1950’s and 1960’s.
Here is the first one, a biplane jet fighter of the RAF (early 1930’s); this aircraft, the hawker Fury, was used by fighter command and also exported to some countries.