HuntsvilleEngineers mark
Stylized blueprint portrait of Sergei Korolev

Sergei Korolev

1907 – 1966

The Chief Designer behind Sputnik and Gagarin.

The Soviet 'Chief Designer,' Korolev led the rocketry program that launched Sputnik in 1957 and Gagarin in 1961 — his identity a state secret until his death. He built the R-7, the ancestor of the rockets still flying today.

The orbital and delta-v tools here describe the arithmetic he turned into hardware. He survived the Gulag to open the space age.

Portrait: a stylized blueprint-line rendering, not a photograph.

Contributions in the toolbox

  1. 1957

    The equation, staged, reaches orbit with Sputnik.

    Tsiolkovsky Rocket Equation
  2. 1957

    First artificial satellite proves the arithmetic.

    Circular Orbit Velocity & Period

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