SEEK EAGLE Dynamic Response Flight Testing of the Pylon Integrated Dispenser Station (PIDS/3) on F-l6 Aircraft

摘要

This report presents the configuration data and raw test data collected on two loads instrumentation ground tests and two dynamic response flight tests conducted by the 40th Flight Test Squadron. Testing was performed for the Air Force SEEK EAGLE Office to evaluate the structural integrity of the PlDS/3 pylon during MK-84 LDGP bomb releases at elevated load factor. The primary configuration consisted of CATM-120 missiles carried on stations 1 and 9, a PIDS/3 pylon with a MK-84 LDGP on station 3, a 16S1700 pylon with a MK-84 LDGP on station 7, and a centerline 300-gallon fuel tank. Five missions were planned for the program. Some instrumentation anomalies were discovered during the first mission, which included inaccurate readings from the left butt line (BL)167 and BL180 strain gauges; therefore, one additional mission was added to compare the results with a mission that was previously flown at Edwards Air Force Base, California. The BLi 67 and BLi 80 errors reappeared, and an additional ground mission was performed to measure the aircraft loads during the application of known loads. Following this mission, the errors were attributed to inaccurate equations of motion for the gauges. A correction factor within the equation takes into account the position of the leading edge flap when computing the actual strain on the structure. This correction factor was not accurate and will be recalculated on the basis of the results of the ground mission and a new calibration of the instrumentation within F-i6CG 87-0353.