Accession Number:

AD0692508

Title:

THE ADVANTAGES OF REARWARD-FACING SEATS DURING POST DECOMPRESSION EMERGENCY DESCENT OF MULTI MACH/HIGH ALTITUDE TRANSPORT AIRCRAFT.

Descriptive Note:

Technical rept. Nov 68-Mar 69,

Corporate Author:

AEROMEDICAL RESEARCH LAB (6571ST) HOLLOMAN AFB N MEX

Personal Author(s):

Report Date:

1969-07-01

Pagination or Media Count:

20.0

Abstract:

During the post decompression emergency descent of Multi MachHigh Altitude Aircraft the occupants will be subjected to deceleration induced inertial loads in the direction of the flight path which will temporarily reach or exceed values of 0.5 G. Forward-facing passengers who have not been able to don the oxygen mask may lose consciousness for various periods of time and will assume positions which are unfavorable for the recovery from hypoxic stress. Aft-facing passengers - even if unconscious - would not lose contact with their seat and seatback and would assume a semisupine position by the combined effect of the aircrafts negative attitude angle and the decelerative load. Recent research suggests that the semisupine position is favorable for recovery from severe hypoxic exposures. A reassessment of the value of aft-facing versus forward-facing passenger seats for subject aircraft is suggested. Author

Subject Categories:

  • Aircraft
  • Medicine and Medical Research
  • Stress Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE