FLIGHT TEST MEASUREMENT OF LANDING LOADS ON THE A4D-2 AIRPLANE
DOUGLAS AIRCRAFT CO LONG BEACH CA
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A Flight Test program was conducted to obtain landing-gear loads and airplane responses associated with field landings under controlled conditions. A total of 209 landings was made with a Model A4D-2 airplane during the period from 8 September 1960 to 2 November 1960 to obtain 29 landings satisfying the desired touchdown conditions. Landings were made at two values of sink speed at each of two different approach speeds on two types of runway surface, dry concrete and concrete coated with approximately one eighth inch of non-skid deck compound. Landings were also completed at three sink speeds with external fuel tanks installed on the wing pylons. Additional landings were made to obtain unsymmetrical touchdown conditions and others were made to run over a cross-deck pendant with the tires bottomed. Data are presented in this report in the report in the form of time-history plots for 26 satisfactory landings, since calibration data were found to be invalid for the early landings. The data from the 26 landings were used by the Douglas Aircraft Company to compare with predicted loads analysis and drop test loads obtained with the identical instrumentation.
- Military Aircraft Operations