war department technical manual Steel treadway bridge equipage field manual Regulations for technical observers and service specialists accompagny U.S. Army forces in the field 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 Weather manual for pilots - USA Voorschrift, Technical Manual, 1-230 Airplane inspection guide - USA Voorschrift, Technical Manual, 1-415 Basic photography - USA Voorschrift, Technical Manual, 1-219
