Training Circular TC 3-22.91 (FM 3-22.91) Mortar Fire Direction Procedures May 2017

Training Circular TC 3-22.91 ( FM 3-22.91) Mortar Fire Direction Procedures May 2017 Training Circular (TC) 3-22.91 provides guidance for military occupational specialty (MOS) 11C Soldiers and their trainers on the employment of the 60-mm mortar (M224), 81-mm mortar (M252), and 120-mm mortar (M120/M121). It discusses the practical applications of ballistics and a system combining the principles, techniques, and procedures essential to the delivery of timely and accurate mortar fire. (Refer to TC 3-22.90 for information about mechanical training, crew drills, and the characteristics, components, and technical data of each mortar.)