[quote=@Willy Vereb]
<Snipped quote by Voltus_Ventus>I'm fine with that but then by that time some nations may already have reliable jet engines.
Granted, the lack of grueling competition may mean that nobody is forced to use these and even in real life where WW1 and WW2 happened the jet engines didn't truly replace propeller-driven fighters until mid 1950s or so.


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There you go, lack of a previous conflict would mean that no one knows the significance of air superiority and thus jet engines would have been neglected.