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Displaying 71—80 of 1000 matches for query "April_1941" retrieved in 0.002 sec with these stats:

  • "april" found 9681 times in 4583 documents
  • "1941" found 521 times in 115 documents



Establishment of the U.S. Army Air Forces (AAF), comprising the Office of the Chief of Air Corps and the Air Force Combat Command (formerly GHQ Air Force), with Maj. Gen. H. H. Arnold as Chief.
U.S.S.R. was attacked by Germany. Ceramic-lined rocket thrust chamber designed by Alfred Africano generated 200-pound thrust.
Office of Scientific Research and Development (OSRD) in the Office of Emergency Management was created by President Roosevelt in Executive Order 8807.
Joint Army-Navy project contract given Northrop for design of an aircraft gas turbine developing 2,500 hp at a weight of less than 3,215 pounds.
Col. Donald J. Keirn of Wright Field sent to England to study Gloster jet aircraft and its Whittle-I engine. AAP decision to produce Whittle engine made in September, and the XP-59 flew a year later. ''Old Fireball'' a science fiction story by American Interplanetary Society founder Nathaniel Schachner appears in Astounding Science Fiction magazine.
First commercial television broadcast over WNBT, New York (first successful demonstration by C. F. Jenkens in United States and J. L. Baird in England was made in early 1920's).
Full-scale wind-tunnel tests of A-1 "power-driven controllable bomb" conducted at Langley Field.
Dr. Jerome C. Hunsaker was elected Chairman of the National Advisory Committee for Aeronautics NACA and Chairman of its Executive Committee.
Navy initiated development of Mousetrap, ship-based 7.2-Inch mortar-fired bomb which became first USN rocket placed into fleet action in May 1942. First successful U.S. jet-assisted takeoff accomplished in an Ercoupe at March Field by Lt. Homer A. Boushey (AAF), with pressed-powder propellant JATO rockets developed by Cal Tech. Project TED (EES 3401) established at Naval Engineering Experiment ...
President Roosevelt prohibited export of aviation fuel outside of the Western Hemisphere, except to Britain and countries resisting aggression, an act aimed at Japan which normally imported large quantities from the United States. NDL was requested to develop radar guidance equipment for assault drones, both to relay target information to a control operator and to serve as an automatic homing ...

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