In 1977, SAC announced that Air National Guard refueling units would begin to upgrade to the KC-135 Stratotanker. The 197th Air Refueling Squadron has been flying the KC-135 for the past 35 years.
Thirty-five years ago in 1977, SAC announced plans to upgrade Air National Guard refueling units to the KC-135 Stratotanker. Since then, the 197th Air Refueling Squadron has been flying the KC-135 for nearly four decades.