John Gridunov
Person
1926 –
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Who is John Gridunov?
John Ivanovich Gridunov is a tester of the former Soviet spacecraft equipment. Being the so-called ground cosmonaut, Gridunov conducted several environmental tests, including the explosive decompression while testing a space suit. He is the only person to experience a short-time acceleration of 50 g, during an emergency landing imitation.
Gridunov also sustained a 19 g centrifuge acceleration in the spine-chest direction without related accommodation.
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"John Gridunov." Biographies.net. STANDS4 LLC, 2024. Web. 7 May 2024. <https://www.biographies.net/people/en/john_gridunov>.
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