The Launch Phase Simulator, which is being developed by the Goddard Space Flight Center, must provide several different functions— individually or in combination—for simulating the environmental con-ditions encountered by the payload of sounding rockets and unmanned spacecraft from liftoff to last stage burnout. A survey has been made of the sounding rockets and spacecraft launch vehicles that NASA is utilizing or will use in the near future, and representative profiles are plotted to show their time history and interrelation of parameters. The following parameters are included in the profiles: acceleration, (longitudinal and lateral), pressure, vibration, acoustics, heating, and spin. From these profiles, an overall envelope of launch environmental parameters has been constructed.
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