The Dynamic Performance of a Variety of Schweizer Glider Seat Cushions under Vertical Impact Loads

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Authors
  1. Day, D.R.
  2. Bowden, T.J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A series of thirteen impacts, using the HyGe Crash Simulator at the Impact Studies Facility of the Defence and Civil Institute of Environmental Medicine (DCIEM), was performed in order to determine the effectiveness of a variety of Schweizer glider seat cushion materials in preventing spinal injury during hard landings. The tests utilized a wooden mock-up of a glider seat mounted on the impact sled so as to simulate impacts in the vertical (bottom of seat pan to top) direction only, producing a velocity change of 21 miles per hour, with a peak deceleration of 17 G. The results showed that none of the 2-inch thick, "energy-absorbing" cushions tested had any significant effect on the probable occurence of spinal injury. However, 4-inch, and thicker, foam-rubber cushions increased the risk of spinal injury significantly.
Keywords
Aircraft seats
Report Number
DCIEM-86-C-28 — Technical Communication
Date of publication
15 Jun 1986
Number of Pages
46
DSTKIM No
86-03433
CANDIS No
98118
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

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