A Study of Airplane Touchdown Data Measuring Devices Used during Carrier Suitability Structural Tests.
Flight test technical memo,
NAVAL AIR TEST CENTER PATUXENT RIVER MD
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The report contains the results of a statistical study of the reading accuracy of the Photo-Sonics 35mm - 4M camera. The reading accuracy limits of the Photo-Sonics camera must be increased a decrease in accuracy above those stated for the Cameraflex. However, this should not imply that the Photo-Sonics camera is less accurate than the Cameraflex. The opposite of this is the case. Additionally, the improvement in the reading accuracy of the Photo-Sonics camera coverage is supported by the data showing the reduction in the sink speed standard deviation from 0.34 fps for the Cameraflex to 0.27 fps for the Photo-Sonics camera. Author