ATP 3-09.50 governs procedures for cannon battery units, including employment, survivability, gunnery, defense, training, and sustainment.
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ATP 3-09.50 covers Army and Marine Corps cannon unit organization, firing positions, laying and reporting data, fire commands, and hasty survey. It includes techniques for battery defense, composite and distributed units, deployment, communications, ammunition management, and training.
All cannon battalions have several limitations. The firing signature of howitzers makes the unit vulnerable to detection by threat target acquisition assets. The battalion has limited self-defense capabilities against ground and air attacks. The battalion also has a limited ability to destroy armored moving targets. (paragraph 1-4)
The gunnery sergeant prepares the position for occupation, to include: Select howitzer locations. Select FDC location. Issue priorities of work to advance party members. Select orienting equipment location, as required. Establish survey, as required. Determine deflection (DF), distance, and vertical angle to each howitzer location. Record howitzer information on weapons location data card. Obtain site to crest (see Appendix E) and piece to crest range from each howitzer representative. Determine minimum quadrant elevation, as required. Initiate perimeter sketch and defense diagram. Supervise advance party personnel in the execution of their duties. (paragraph 3-41)
The preferred defense technique against indirect fire is a combination of dispersion, hardening, and survivability movements. (paragraph 5-20)
The howitzer section chief submits the report SHOT NUMBER (so and so) after a round is fired. However, if the method of fire is more than one round, the howitzer section chief reports SHOT only after the initial round. (paragraph 5-21)
The howitzer section chief reports ROUNDS COMPLETE NUMBER (so and so) when the final round designated in the method of fire is fired. (paragraph 5-21)