Corrected entry: Black Widow asks her civilian contractor to procure a jet for her. All he could find was a beat up old helicopter. Which is exactly what she and her sister needed to get Alexei out of prison. They could not have done it with a jet. If they had got a jet they still would have needed a helicopter. So much for that.
toroscan
12th Jul 2021
Correction: You're assuming their original plan was to hover over the prison to be sitting ducks to attacks. It's also possible they expected Alexei to break out and meet them outside the prison or rendezvous at the jet. Not to mention the Quinjet has hovering capabilities if that's what Mason could get for her.
Bishop73
OK. You have a point.
toroscan