@ 1. Scope.—This manual is designed for use by antiaircraft machine-gun batteries as a guide in selection of personnel, employment of practical training methods, and service of the piece. The drills are intended primarily for the use of mobile units equipped with the caliber .50 Browning machine gun on the antiaircraft machine-gun mount. Separate drills, A and B, are provided for the M2 and M1 mounts, respectively, in cases where differences in the matériel require it. These drills, with minor variations, are applicable to mobile and semimobile (see par. 42b) antiaircraft machine-gun batteries, including those equipped with the caliber .30 Browning machine gun, M1917. @ 2. Rererences.—This manual should be studied in conjunction with the references listed in the Appendix.
DesignationFM 4-135
EditionJan 1940
StatusSuperseded
Pages43
FunctionAviation
CollectionHistoric
Public domain (U.S. Government work)