A Simulation Model of the T-46A Aircraft for Availability and Sortie Projections.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
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This study simulated the operation of the T-46A trainer aircraft in the Undergraduate Pilot Training UPT environment in order to estimate aircraft availability and sortie generation rate. The simulation model is based on current T-37 aircraft UPT operations and uses estimates of the reliability and maintainability of the T-46A. Regression analysis techniques were used to estimate the functional relationship between the independent variables and the response variables. After initial screening, only two factors were included as independent variables. These were mean time between failures MTBF and mean time to repair MTTR. A central composite design was used to gather the data needed to perform the regression. Results of the regression analysis indicated that for both aircraft availability and sortie generation rate, a second order regression equation in terms of only the MTBF factor provided the best fit. As was expected, an increase in MTBF, meaning the aircraft is more reliable, results in an increase in both aircraft availability and sortie generation rate. Estimates and confidence intervals for aircraft availability and sortie generation rate were determined. Theses
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