Mathematics for air crew trainees - USA Voorschrift, Technical Manual, TM 1-900 Aircraft instruments - USA Voorschrift, Technical Manual, 1-413 Aircraft inducation, fuel, and oil systems - USA Voorschrift, Technical Manual, 1-407 Aircraft power plant operation - USA Voorschrift, Technical Manual, 1-408 Aerostatics - USA Voorschrift, Technical Manual, 1-325 Elementary weather for air crew trainees - USA Voorschrift, Technical Manual, 1-231 Harmonization of aircraft fixed guns and sights - USA Voorschrift, Technical Manual, 1-495 Personal Papers in the Albert F.Simpson Historical Research Center / comp. and ed. by Richard E. Morse and Thomas C. Lobenstein
