Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Military Intelligence : identification of Japanese aircraft Parachutes, aircraft fabrics, and clothing - USA Voorschrift, Technical Manual, 1-440 Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Antiaircraft artillery : service of the piece 105-mm antiaircraft gun - USA Coast Artillery Field Manual, FM 4-130 Elementary map and aerial photograph reading - USA Voorschrift, Basic Field Manual, 21-25 Antiaircraft artillery : position finding and control antiaircraft searchlights - USA Coast Artillery Field Manual, FM 4-111 Message center-procedure - USA Voorschrift, Training Regulations, No. 160-10 Aircraft radio shop practice - USA Voorschrift, Technical Manual, 1-470 Aircraft mechanics tools - USA Voorschrift, Technical Manual, 1-425 Aircraft hardware and materials - USA Voorschrift, Technical Manual, 1-424 Aircraft sheet metal work - USA Voorschrift, Technical Manual, 1-435