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Full Description

A photographic technique is described for determining minimum observer-to-aircraft distances during acoustic "fly-over" tests. Possible sources of error are discussed, and it is shown that with ordinary care results are sufficiently accurate to require no correction.
 

Document History

  1. SAE AIR902A


    Determination of Distance from Ground Observer to Aircraft for Acoustic Tests

    • Most Recent
  2. SAE AIR902

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    Determination of Minimum Distance from Ground Observer to Aircraft for Acoustic Tests

    • Historical Version