• Thumbnail for Vanguard TV-3BU
    Vanguard TV-3BU, also called Vanguard Test Vehicle-Three Backup, was the second flight of the American Vanguard rocket. An unsuccessful attempt to place...
    11 KB (1,330 words) - 08:56, 26 April 2024
  • Thumbnail for Vanguard TV-3
    Vanguard TV-3 (also called Vanguard Test Vehicle-Three), was the first attempt of the United States to launch a satellite into orbit around the Earth...
    15 KB (1,619 words) - 21:18, 3 August 2024
  • complete loss of engine thrust. After the failure of Vanguard TV-3, the backup vehicle, Vanguard TV-3BU ("BU" for backup), was prepared for another attempt...
    22 KB (2,485 words) - 13:15, 14 August 2024
  • Thumbnail for Vanguard 1
    Vanguard 1 (Harvard designation: 1958-Beta 2, COSPAR ID: 1958-002B) is an American satellite that was the fourth artificial Earth-orbiting satellite to...
    15 KB (1,576 words) - 17:16, 2 September 2024
  • Thumbnail for Vanguard TV-5
    identically configured TV-3BU broke up when a control system malfunction, after 57 seconds of normal flight, caused the Vanguard rocket to exceed a 45°...
    9 KB (907 words) - 01:44, 6 April 2021
  • or crewed missions. Green, Constance McLaughlin; Lomask, Milton (1970). Vanguard: A History. Scientific and Technical Information Division, National Aeronautics...
    70 KB (794 words) - 15:15, 10 September 2024