The USAF rejected the proposal , and the appeal was later dismissed .
A proposed aerial refueling version of the An - 70 , except with two jet engines from the team of U.S. Aerospace and Antonov for the U.S. Air Force 's KC - X program .
The U.S. Air Force rejected the proposal , and the appeal was later dismissed .
A proposed aerial refueling version of the An - 70 , except with two jet engines from the team of U.S. Aerospace and Antonov for the U.S. Air Force 's KC - X program .