Word: vanguard
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...LITTLE KAROO (188 pp.)-Pauline Smith-Vanguard...
...outspoken advocate of the Army's Jupiter-C, whose high-speed stages had been designed by Pickering's Jet Propulsion Laboratory. "I made rather a pest of myself around Washington about Jupiter." he admits. But the Pentagon shunted Jupiter aside in favor of the Navy's Vanguard...
Despite his candid partisanship, Van Allen's status as the best instrumentator of space was so indisputable by this time that he found himself commissioned to provide Vanguard's instrumentation. He dutifully set to work. But he took the precaution of finding out just what the Army had planned for its banned Explorer I satellite. The Army informed him that it had in mind a cylinder 6 in. in diameter. By no coincidence at all, the instrument package Van Allen produced for the 21-in. Vanguard sphere proved to be cylindrical, and just 5½ in. in diameter...
...free world was crying for U.S. satellite action. But the Vanguard program still sputtered and faltered. Suddenly, Van Allen got a radio message from Pickering. The Army had at last got permission to try its satellite. He asked if Van Allen would approve transfer of his instruments to Jupiter...
...light but powerful radio transmitters-would have to be modified in one respect. It contained a miniature tape recorder to record the cosmic-ray data during a trip around the earth and then transmit it quickly when triggered by a coded signal sent up from the ground. Designed for Vanguard, this elegant apparatus would not work in Explorer I, which would spin too fast. So it was removed, requiring Explorer I to broadcast continuously...