4638B Vol. 1 and 6: Powered flying control test rigs, general and technical information and repair and reconditioning instructions Barr & Stroud. Environmental test department Bryans aeroquipment limited. Instrument test equipment Contraves. Servo/test instrument Douglas Aircraft Company. Demonstration Flight Tests Model 8A-3N #531, Report #589, October 1939 N.V. Hollandsche Signaalapparaten. Enviromental testing at N.v. Hollandse Signaalapparaten Regulations prescribing standard for field firing and the proficiency test Aircraft engine operation and test - USA Voorschrift, Technical Manual, 1-408 Army personnel tests and measurement - USA Voorschrift, Technical Manual, 12-260 Telecommunications test equipment for the Armed Forces : catalogue / Marconi Instruments Ballistic tests of armor plate as manufactured by the Carnegie Steel Company limited Test sets 1-61-A, 1-61-B and 1-61-C - USA Voorschrift, Technical Manual, 11-346
