The studies were conducted on 5 sound operators, age 26-44. The flight simulator was placed into a heat chamber with temperature range from 25 degrees C to 60 degrees C. In these conditions the operators had to withstand pitching and rolling in "horizontal flight" within 6 min. The piloting performance on simulator was conducted by the operators every 10 min. per one hour. 48 tests were carried out. The studies have shown the phase character in roll error at the temperatures of 60 degrees C. The authors make a conclusion that the moderate hypothermia could optimize the operator's performance, and the deep one could worsen it.
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