Human factor aspects of army helicopter operations.
D000060:Accidents, Aviation; D000337:Aerospace Medicine; D000401:Aircraft; D004779:Environment Design; D006804:Ergonomics; D005221:Fatigue; D006358:Hot Temperature / Q000009:adverse effects; D006801:Humans; D009622:Noise / Q000009:adverse effects; D014732:Vibration / Q000009:adverse effects; D014938:Work Capacity Evaluation