rick_little99 wrote:

A friend and I were having a debate on a rumour that we once heard.
The rumour went along the lines, If concorde (or and other supersonic
aircraft for that matter) was fitted with guns then the bullets would
not be able to leave the muzzle or it would shoot itself if it fired
them while cruising. Assuming that the bullets velocity and the speed
of the aircraft are the same, what are your thoughts on what would
happen?


It would take a lot of air pressure to stop a bullet just as it was
leaving the muzzle. The bullet would easily exit the barrel and only
then begin to slow down from air resistance. In level flight, it is
very unlikely that the airplane could shoot itself as the bullet would
be falling to earth as it slowed down and would pass under the airplane.


Matt