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Displaying 41—50 of 1000 matches for query "Apr_4_1947" retrieved in 0.006 sec with these stats:

  • "apr" found 38145 times in 1871 documents
  • "4" found 40673 times in 14650 documents
  • "1947" found 844 times in 286 documents



National Advisory Committee for Aeronautics NACA Langley's PARD launched its first rocket-propelled model of a complete airplane for performance evaluation (AF XF-91), at Wallops Island. This was followed by flight tests of models of practically all Air Force and Navy supersonic airplanes.
Lionel Gilbert delivers paper entitled ''Cosmic Rays'' at the monthly meeting of the British Interplanetary Society . The lecture is at the London Science Museum. 54 members attend.
Air operations in the Antarctic known as Operation Highjump ended. From December 24. 1946, Navy PBM's and R4D's logged 650 hours in photographic mapping of 1,500,000 square miles of the interior and 5,560 miles of the coastline, the equivalent of about half the area of the United States and its entire coastline.
Leslie R. Shepherd delivers paper entitled ''The Energy and Stability of Atomic Nuceli'' at the monthly meeting of the British Interplanetary Society . 36 members present.
Regular commercial airline passenger service initiated by Colonial Air Transport between New York and Boston.
The American Interplanetary Society , later the American Rocket Society (ARS), founded in New York City for the "promotion of interest in and experimentation toward interplanetary expeditions and travel." Invited to the first evening of discussion at the Pendray's home on West 22nd street in New York were Charles P. Mason , Adolph L. Fierst, Nathan Schachner , Warren Fitzgerald, ...
Rear Adm. W. A. Moffett, Chief of Navy Bureau of Aeronautics, killed along with 72 others in crash of the dirigible Akron at sea off the coast of New Jersey. He was replaced by Rear Adm. E. J. King (USN).
BIS Chairman A.V. Cleaver delivers lecture "Interplanetary Flight" to the Derby branch of the Royal Aeronautical Society.
''RELEASE 17-037'' '''NASA’s Cassini Mission Prepares for 'Grand Finale' at Saturn''' NASA's Cassini spacecraft, in orbit around Saturn since 2004, is about to begin the final chapter of its remarkable story. On Wednesday, April 26, the spacecraft will make the first in a series of dives through the 1,500-mile-wide (2,400-kilometer) gap between Saturn and its rings as part of the mission’s ...
The first edition of a "new series" of the Bulletin of the British Interplanetary Society is edited and issued by Edward John Carnell from the society's London address. It was in fact the second to be called "New series" and it was followed by yet another "new series" published after World War II, beginning in January 1946.

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