I believe it was a cargo and refueling plane. When I was in the USAF, on KC-135s we often carried lots of people to various destinations, but few on refueling missions unless they were on “Flying status” and earning their flying time.
As retired Marine, while on active duty I spent many hours on KC-130s, KC-135s and KC-10s. I have pictures from the boom operators station of the KC-10 during refueling operations.
As retired Marine, while on active duty I spent many hours on KC-130s, KC-135s and KC-10s. I have pictures from the boom operators station of the KC-10 during refueling operations.