Field Manual: FM 23-92: 4.2-INCH MORTAR, M30. June 1970
Contents: Mechanical Training: Introduction * Crew Drill * Mortar Carrier M106 and M106A1 * Gunner's Examination * Tactical Employment of the 4.2-inch Mortar Section, Battalion Heavy Mortar Platoon * Squad and Section Conduct of Fire Without a Fire Direction Center * Appendix A: References * Appendix B: Training Devices * Appendix C: Minimum Information Requirements when Reporting an EOD Incident * Index.
