Vanguard SLV-2

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Vanguard Satellite SLV-2 Being Examined at Cape Canaveral
Vanguard rocket on LC-18A prior to its launch

Vanguard SLV-2, also called Vanguard Satellite Launch Vehicle 2 hoped to be the second successful flight of the American Vanguard rocket following successful Vanguard 1 satellite on rocket Vanguard TV-4. Vanguard SLV-2 launched on June 26, 1958 05:00 GMT. It was launched from Launch Complex 18A at the Cape Canaveral Air Force Station. The second stage engine shut down after only 8 seconds of operation, resulting in insufficient velocity to put the satellite into orbit. Investigation concluded that scale from the second stage oxidizer tank had clogged propellant feed lines and resulted in loss of thrust.[1][2][3][4][5]

Vanguard SLV-2 hoped to put into orbit the Vanguard 2C satellite, a Lyman Alpha satellite, with a magnetosphere measurement device. The satellite payload was 10 kg (22 lb). Vanguard SLV-2 only reached an altitude of 165 km (103 mi), the goal was 3,840 km (2,390 mi) to orbit.[6][7]

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Further reading[edit]

  • Mallove, Eugene F. and Matloff, Gregory L. The Starflight Handbook: A Pioneer's Guide to Interstellar Travel, Wiley. ISBN 0-471-61912-4.