US Army, Technical Manual, TELESCOPE MOUNT: M146 (1240-00-864-0348), ELBOW TELESCOPE: M118A2 (1240-01-092-2693), ELBOW TELESCOPE: M118A3 (1240-01-317-9241), ... AND LINKAGE ASSEMBLY (1030-01-317-9117)

US Army, Technical Manual, TELESCOPE MOUNT: M146 (1240-00-864-0348), ELBOW TELESCOPE: M118A2 (1240-01-092-2693), ELBOW TELESCOPE: M118A3 (1240-01-317-9241), TELESCOPE MOUNT: M145 (1240-00-871-2969), TELESCOPE MOUNT: M145A1 (1240-01-313-6842), PANORAMIC TELESCOPE: M117 (1240-00-864-2930), PANORAMIC TELESCOPE: M117A2 (1240-00-106-7754), FIRE CONTROL QUADRANT: M15 (1290-00-896-2236), PERISCOPE: M42 (1240-00-864-2933), LINKAGE ASSEMBLY (1240-00-871-5475), AND LINKAGE ASSEMBLY (1030-01-317-9117)


SCOPE
Type of manual: Direct and general support maintenance.

Model numbers and equipment name: M146 telescope mount, M118A2/M118A3 elbow telescope, M145/M145A1 telescope
mount, M117/M117A2 panoramic telescope, M15 fire control quadrant, M42 periscope, and linkage assembly.

Purpose of equipment: Used on the M109A2/M109A3/M109A4/M109A5/M109A6 howitzer to provide sighting and targeting capabilities.