A NEW METHOD OF IGNITION DEVELOPED FOR RECOILLESS GUNS FIRING FIN-STABILIZED PROJECTILES

The principles of uniform ignition formulated for special types of recoilless weapons have been applied to recoilless weapons firing fin-stabilized projectiles. A new ignition system, has been developed for these weapons. Better uniformities in chamber pressures and muzzle velocities have been obtained at ambient temperature when the new ignition system has been used to fire the 90 mm M67 recoilless gun, as compared with the ballistic results obtained with the previous ignition system.