1. ScoPE.-a. This manual prescribes a systematic procedure to be followed by gun crews of 3-inch antiaircraft guns manning mat6riel of the following types: (1) The 3-inch antiaircraft guns, M1917, M1917MI, and M1917MII on the fixed mounts, M1917, M1917MI, and M1917MII. (2) The 3-inch antiaircraft gun, M3, on the mobile mounts, M2A1 and M2A2. (3) The 3-inch antiaircraft gun, M4, on the fixed mount, M3A1. b. The matter contained in this manual is intended only as a guide in the assignment of individuals and duties; changes may be made to meet variations in the mat6riel manned. * 2. REFERENCES.-The references listed in the Appendix should be consulted, especially those pertaining to ammunition and to the operation, care, and maintenance of mat6riel.
DesignationFM 4-125
EditionJan 1940
StatusSuperseded
Pages65
FunctionAviation
CollectionHistoric
Public domain (U.S. Government work)