Boeing's Original Swept Wing Design Has Aged Well
It's hard to believe the US Military operates 50-year-old
aircraft, but they do... every day, 24/7. The KC-135 is the USAF's
primary in-flight refueling tanker, and also happens to be one of
its most valuable tools -- nobody goes anywhere without gas, and
the KC-135 has 30,000 gallons of what everybody needs.