Dated 17 March 2017 with Change 1 dated 13 Dec 2022

(This book supercedes FM 3-22.90, Mortars dated Dec 2007)

Preface

This publication prescribes guidance for leaders and members of mortar squads. It concerns mortar squad training and is used with the applicable technical manuals (TMs) and Army training programs. It presents practical solutions to assist in the timely delivery of accurate mortar fires.

The scope of this publication includes mortar squad training at the squad level. The 60-milimeter (mm) mortar, M224/M224A1; 81-mm mortar, M252/M252A1; 120-mm mortars, M120/M121; and the Recoil Mortar System 6–Lightweight (RMS6-L) are discussed, and includes nomenclature, sighting, equipment, characteristics, capabilities, and ammunition. (Refer to ATTP 3-21.90 for information on the tactics, techniques, and procedures that mortar sections and platoons use to execute the combat mission.)

This publication applies to the active Army, the Army National Guard, the Army Reserve, and the United States Marine Corps. Unless otherwise stated in the publication, masculine nouns and pronouns refer to both men and women.

Mortars are suppressive indirect fire weapons. They can be employed to neutralize, suppress, or destroy area or point targets, screen large areas with smoke, and provide illumination or coordinated high- explosive/illumination. The mortar platoon’s mission is to provide close and immediate indirect fire support to all maneuver units on the battlefield.

This book is a "mini" (7 1/4 inches high by 5 1/2 inches wide) size - A popular size to carry anywhere (briefcase, large pocket, purse) but the print is large enough for easy reading.  The binding is coil, allowing for easy page turning with no jamming.

(If you want the BIG size (the size of a regular sheet of paper), we have it on this website too.)

The covers are laminated for weather protection with black and white inside printing.