An increase in the fleet size or an introduction a new fleet leads to a requirement for additional inventory to support this increase. Fleet ramp-ups generally take place in stages with delivery of aircraft, leading to a stage-by-stage increase in the level of spare parts required. Likewise, a decrease in the fleet size due to a phase-out of a fleet leads to a decrease in the required inventory support the fleet.
The Fleet Evolution Analysis function enables determination of how many additional spares are necessary at each stage of a fleet ramp-up including the location it should be optimally placed, as well as the optimal inventory at each stage of a fleet ramp-down to identify opportunities for sales of excess units and/or repair delays.