Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Military Intelligence : identification of Japanese aircraft Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Advanced glider training - USA Voorschrift, Technical Manual, 1-815 Military intelligence : identification of U.S. government aircraft - USA Voorschrift, Basic Field Manual, 30-30 Aircraft engine operation and test - USA Voorschrift, Technical Manual, 1-408 Airplane structures - USA Voorschrift, Technical Manual, 1-410 20-MM automatic gun M1 and 20-MM aircraft automatic gun AN-M2 : ordnance maintenance - USA Voorschrift, Technical Manual, 9-1227 Aircraft mechanics tools - USA Voorschrift, Technical Manual, 1-425 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