Skylab Medical Experiment Altitude Test

The Skylab Medical Experiment Altitude Test, or SMEAT, was a 56-day simulation of an American Skylab space mission from July 26–September 19, 1972 at NASA's Manned Spacecraft Center in Houston, Texas. The astronauts in the test were Bob Crippen, Karol Bobko, and William Thornton, who simulated space experiments, housekeeping and leisure activities in a hypobaric chamber. SMEAT provided a baseline for the in-orbit portion of biomedical experiments on Skylab.[1]

The SMEAT crew emblem

One of the benefits of SMEAT was discovering flaws in the urine handling system of Skylab, which allowed the problem to be fixed.[2] The Skylab toilet went on to be widely praised by astronauts after the orbital missions.[3]

MSC invited the press in to film the crew entering the chamber.[4] They could not talk to the press as they entered because they were wearing oxygen masks, but they did give a signed photo to one of the press that came out for the event.[5] There were also a number of NASA officials there.[6]

SMEAT's main objective was to evaluate equipment and procedures proposed for use during the Skylab missions. NASA also wanted to obtain a baseline of physiological data for crewmembers confined in a test chamber to compare to the orbiting crews in Skylab living in zero-G. The crew was subjected to a pressure of ​1⁄3 bar and 70% oxygen level.[7] Closed-circuit TV provided views of activities inside the chamber.

Simulation Conditions
​1⁄3 bar pressure
70 percent oxygen level
56 days duration

Roles:[8]

  • Commander - Crippen
  • Science Pilot - Thornton
  • Pilot - Bobko

See also

References
  2. "ch8". history.nasa.gov. Retrieved 2017-10-06.
  3. "ch8". history.nasa.gov. Retrieved 2017-10-06.
  4. Skipper, James M. "Skylab Medical Experiments Altitude Test". www.jamesmskipper.us. Retrieved 2017-10-06.
  5. Skipper, James M. "Skylab Medical Experiments Altitude Test". www.jamesmskipper.us. Retrieved 2017-10-06.
  6. Skipper, James M. "Skylab Medical Experiments Altitude Test". www.jamesmskipper.us. Retrieved 2017-10-06.
  7. David Hitt; Owen K. Garriott & Joseph P. Kerwin (2008). Homesteading Space: The Skylab Story. University of Nebraska Press. ISBN 978-0-8032-3639-4.
  8. Administrator, NASA Content (2015-03-12). "Astronaut Crippen With Skylab Training Hardware". NASA. Retrieved 2017-10-06.


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