TC 3-22.90 — Mortars (this Item Is Published W/ Basic Incl C1)

TC 3-22.90 governs U.S. Army mortar training, including mortar equipment, employment, fire control, operations, safety, and gunners examinations.

Search TC 3-22.90

  • Publication number: TC 3-22.90
  • Title: MORTARS (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)
  • Date: 03/17/2017
  • Proponent: T2COM
  • Status: ACTIVE

View TC 3-22.90 on armypubs.army.mil


TC 3-22.90 covers 60-mm, 81-mm, and 120-mm mortars, ammunition, indirect fire teams, firing methods, and mortar carrier systems. It requires preparation before gunners examinations and proper checks before mounting the 120-mm mortar.

Applies to: Active Army, Army National Guard, and United States Army Reserve.

Topics covered

  • 60-mm mortar operations
  • 81-mm mortar operations
  • 120-mm mortar operations
  • Mortar Fire Control System
  • Indirect fire procedures
  • Boresighting and sight units
  • Fire commands and observer corrections
  • Gunners examinations

Questions and answers

What elements make up the indirect fire team in TC 3-22.90?

The team consists of a forward observer (FO), a fire direction center (FDC), and the mortar squad. (paragraph 1-5)

What must the mortar squad ensure before a fire mission when using the pointing device?

Prior to a fire mission, the mortar squad ensures that the pointing device is functioning and that the mortar is boresighted properly. (paragraph 6-49)

What must a Soldier know before taking the gunners examination?

A Soldier must be proficient in mechanical training, squad drill, and fire commands and their execution before being qualified to take the examination. (paragraph 8-5)

How often must units armed with a mortar weapon system give examinations?

Each unit armed with a mortar weapon system gives examinations semiannually. (paragraph 8-8)

How should the M67 sight unit be stored when it is not in use?

When not in use, store the sight unit in its carrying case. (paragraph 2-2)

Ask Reggie.Bot a question about TC 3-22.90