found: Work cat.: Carden, H.D. Effect of crash pulse shape on seat stroke requirements for limiting loads on occupants of aircraft, 1992:p. 2 (Analysis. The photographic sequence in figure 1 illustrates the crash dynamics of a general aviation type, single engine airplane test specimen) p. 3 (Assumptions and idealizations. The crash event of an aircraft as depicted in figure 1 is generally a very complex sequence of events, but a good understanding of the structural response and seat/occupant behavior can be obtained by simplifying analytical techniques)