Statotanker
A KC-135R from the Iowa Air National Guard's 185th Air Refueling Wing is on approach at the Sioux City Regional Airport. The KC-135, a variant of the Boeing 707, is used primarily as a mid air refueling aircraft. The 185th has been flying the KC-135 since 2003.
USAF Photo by MSGT Vincent De Groot 185th ARW Public Affairs