Why go to such lengths with the bomber? With one mid-air refueling, the B-2 Spirit can fly 11,500 miles. That's just slightly less than half the circumference of the Earth. So with refueling B-2 bombers can literally fly almost halfway around the world. Until the Air Force's Long Range Strike Bomber is built, flying extreme distances with deadly payloads is a job for B-2s, and since there are only 20 of them, they need every extra bit of stealthiness they can muster to increase their odds of survival.