Jan,

You sure are choosing the wrong examples to biscredit Bernoulli
The Name of the engine you are discribing should explain the action.
F15 JET. Jet being the key word. Don't yor know how a jet operates? We
have many in this group who can explain this better than I

Jan again you are proving Bernoulli Theorem. A Jet is based pretty much
on a venture or a Jet nozzil. The rotating blades pull air into a
narrowd section or Jet, increasing the vel