Sky Bandits (1986)

Synopsis
Set during the last days of the old west, this zany adventure follows the exploits of a pair of cow-poke bankrobbers her are captured and then given the choice between going to jail or going overseas to fight WW I. They choose the latter and end up in France where they eventually join a squadron of British pilots. The fliers have been assigned to gun down a well-protected, gigantic German zeppelin that has been causing many headaches for the Allies. Unfortunately, the attempts take a heavy toll on the planes and slightly addled British plane mechanic Fritz is having increasing difficulties piecing the planes back together. Tables turn for the better when the two unwilling soldiers learn to fly the planes themselves. ~ Sandra Brennan, All Movie Guide