The Boeing KC-135 Stratotanker military aerial refueling aircraft marked its 60 the anniversary with the U.S. Air Force on August 31.
The first Stratotanker flew in August of 1956 and was later delivered to USAF's 93rd Air Refueling Squadron in June 1957.
The four engined tanker was based on the Boeing 707 passenger jet and was the first jet powered tanker in USAF fleet, replacing the KC-97
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