Repositioning time is defined as the time it takes an aircraft still on the ground to reposition itself and transit to the current trips departure position. Reposition time in other words is the time it takes an aircraft to move from its current position to the required airport for departure. Like taxi time, reposition time is the total time of the aircraft moving on the ground from the departure gate to the runway but starts from the time the aircraft begins to reposition it self on the ramp for taxi unlike taxi time where its starting point begins when the gate is detached. An aircraft can start reposition time at any given point on ramp provided the aircraft is still manoeuvring off the ramp to the departure end. For example: if an aircraft were departing the gate it would be pushed back by a toe cart and the taxi time would start at the time in which the gate was detached whereas the reposition time would start at the point in which the toe cart started moving the aircraft.
Reposition time can be used in many time calculations for an aircraft. It determines the ETA (estimated time of arrival) for an aircraft at its destination. If the original estimate for an aircraft's taxi time was 5 minutes and it was held in transit for longer, then its ETA at the destination airport would change. In more commercial airlines reposition times tend to be a lot longer due to the immovability of the turbo-jets. When it comes to jet charters, typically super mid-sized, light, and very light jets, reposition times are much lower. This is because these charter jets are a lot smaller, have a higher turn radius, and often don’t need as much force to move them around or get the rolling. These all play a factor is how quickly the jet gets off the ground.
Lower reposition times lead to short flight times and in turn lead to lower cost. These savings are passed down to the customer and are the reason charter jets have become so popular today. Their ability to out do the high traffic volumes in major airports and their cheaper cost are making them one of the fastest growing industries in the world, and without short reposition times they wouldn’t be going as far. No one likes to get stuck on a plane in the non air-conditioned air waiting to be pushed back and toed to the ramp to taxi to the runway. Charter jets have overcome this problem with the help of lower reposition times.