[ power ] One of the amazing things about ants is that they can heft objects  far heavier than their body weight. And one of the amazing things about the far-from-ant-sized PW4000 engine is that it can, too. Two of these Pratt & Whitney engines, weighing a total of 18,664 pounds, power the A300 aircraft, which has a maximum takeoff gross weight of 363,760 pounds. Pratt & Whitney 2002 year in review 7