planefag with the kc-135 post, fyi >>4249427
the interest thoughts from a old crew chief, There are 14 KC-135RT's in the fleet, they are receiver/tankers therefore if this not a simulation artifact for training. Then one of these could be and RT and doing a training sortie. However, their could a search crew for something and the with ads-b off the search teams could be going out and backs and then the A/R track could remain on-station with augmented crews for peacetime 30 hours wartime 72 hours with the right crew rotations. It really depends on the crew bunks, food, waste reserve storage.