Its primary task is to test and evaluate modifications on the B - 1 bomber , as well as to train future aircrews to fly upgraded B - 1s .
It is a part of the 53d Test and Evaluation Group of the 53d Wing .
part 's primary task is to test and evaluate modifications on the B - 1 bomber , as well as to train future aircrews to fly upgraded B - 1s .
It is a part of the 53d Test and Evaluation Group of the 53d Wing .