VFR Approach Profiles in the T-38 Aircraft
BUNKER-RAMO CORP WESTLAKE VILLAGE United States
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The report presents tabulated data from the theodolite tracking of 334 VFR approaches in the T-38 aircraft. The objective of the study was to determine whether the VFR approach path was straight or was multiangular, as reference data for the development of a head-up display to aid VFR landing. The form of the normal VFR path has implications for the type of command--single-angle or segmented--to be provided by a landing aid. It is concluded that the path in the mile before touchdown is composed of at least three angular segments. The values of the angles for each segment remained remarkably constant across the thirteen approach conditions measured. Night approaches were consistently steeper, higher at threshold, and had longer landing distances than did day approaches under similar conditions.