 If mounted elsewhere, such as in the wing, the asymmetric force of the cannon's recoil tended to yaw the aircraft's nose to one side.The only known usage of the MK 103 in a "Motorkanone" installation was in the Do 335.A modified version with a reduced-profile barrel, the MK 103M, was developed and possibly tested for use as a "Motorkanone" cannon on single-engine fighter planes such as the Bf 109K, but probably never saw active service.