And of course it was much more complicated with many more "firsts" https://en.wikipedia.org/wiki/History_of_the_jet_engine https://en.wikipedia.org/wiki/Histor

And of course it was much more complicated with many more "firsts" https://en.wikipedia.org/wiki/History_of_the_jet_engine https://en.wikipedia.org/wiki/History_of_the_jet_engine