Questions tagged [vanguard]

Questions about the early Vanguard series of U.S. orbital rockets, and the satellites launched (not always successfully) on top of them.

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What was so “Mini” about Minitrack?

In the US Naval Research Laboratory video Vanguard 60th Anniversary: A Look Back Roger L. Easton says: Now, how did Vanguard Start? I think it’s fair to say that Milt Rosen started the Vanguard ...
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What was the mass of the Viking sounding rocket engine (XLR-10-RM-2)?

I can find information about the XLR-10 for its sea level & vacuum thrust and specific impulse but not about its mass. What did this thing mass? Was it gimballed?
4
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Why would low pump inlet pressure result in such a spectacular explosion? (Vanguard TV3)

In the short US Naval Research Laboratory video Vanguard 60th Anniversary: A Look Back at about 03:46, Mr. Alton E. Jones says: Most people are curious about as to ...