Transportation corps : military railroads and the military railway service - USA War Department Field Manual, FM 55-50 Transportation corps : railway shop battalion - USA Voorschrift, Field Manual 55-60 Individual clothing and equipment - USA Field Manual, FM 21-15 First aid for soldiers - USA Basic Field Manual, FM 21-11 field manual Headquarters company, intelligence and signal communication, rifle regiment / prepared under direction of the Chief of Infantry Aircraft hardware and materials - USA Voorschrift, Technical Manual, 1-424 Aircraft sheet metal work - USA Voorschrift, Technical Manual, 1-435 Grinding machines - USA Voorschrift, Technical Manual, 1-422 Aircraft woodwork - USA Voorschrift, Technical Manual, 1-414 Airplane structures - USA Voorschrift, Technical Manual, 1-410 Airplane hydraulic systems and miscellaneous equipment - USA Voorschrift, Technical Manual, 1-411 Aircraft electrical systems - USA Voorschrift, Technical Manual, 1-406
