Correction of the Hang-Out-of-Battery (HOB) Problem on the M60A2 Tank.

摘要

Testing of the M60A2 tank revealed the main gun failed to return to battery after firing. The report investigates Army Materiel Command's proposed fixes to correct the problem and determines suitability of the proposed Quality Assurance program. Included in the investigation are testing techniques and measurements of recoil pressures, counter recoil velocities and friction forces experienced in firing the M81 main tank gun, 152mm. The report further discusses an apparatus for measuring return to battery forces which would identify potential gun launchers that would hang out of battery when fired.