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Princeton University started construction of 4,000-mph wind tunnel.

World speed record regained by United States when P-80R flown by Col. Albert Boyd attained 623.8 mph at Muroc, Calif.

In meeting at Wright-Patterson, AAF and National Advisory Committee for Aeronautics NACA representatives agreed to divide responsibilities for Bell X-1 X-1 flight testing: AF exploit maximum performance in a few flights; National Advisory Committee for Aeronautics NACA acquire detailed research information.

Contract with Convair for MX-774 "Upper Air Test Vehicle," predecessor of the Atlas ICBM, was cancelled by the AAF.

Start of polyethylene balloon operations at Holloman, a 10-balloon cluster launched by New York University staff with a payload of less than 50 pounds which reached an altitude of 18,500 feet.

Subsonic ramjet engine successfully flown in Navy Gorgon IV (PTV-2) in 28-minute flight test at Naval Air Missile Test Center. News of the so-called "Flying Disc" found at Roswell New Mexico makes the front page of British newspapers.

President Truman designated a five-man Air Policy Committee, with Thomas K. Finletter of New York as Chairman, to submit by 1 January 1948 a broad plan to give the United States the "greatest possible benefits from aviation."

President Truman signed the Armed Forces Unification Act, creating a Department of the Air Force, coequal with Army and Navy, and creating a National Military Establishment under the Secretary of Defense.

USAF relinquished responsibility for Army's missile program and Army assigned primary responsibility for it to Ordnance. Soviet MiG-15 first flew but engine performance was unsatisfactory, a problem solved with purchase of 55 British Derwent V and Nene (4,500-pound thrust) engines, first placed in series production, then improved with the RD-45 engine (5,000-pound thrust) and the VK1 (6,000- ...

August 1-3: Boeing B-29 set a new official world "distance in a closed-circuit record" with a flight of 8,854.308 miles, Lt. Col O. P. Lassiter as pilot.

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