Selected photos from:

Douglas C-9C (DC-9)
Stage III Hush Kit Project


This project was an FAA certification flight test program for a Douglas C-9C (which happened to be the First Lady's airplane). The noise reduction hush kit was certificated to FAR Pt. 36 Stage III requirements. Alligator had responsibility for all aspects of test equipment, data acquisition, and data processing of flight data. (August 1999)


Flight test crew at Moses Lake, WA airport


Alligator's data acquisition system installed in the C-9C


Front view of data acquistion system


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