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Boeing KC-135E Stratotanker

History of the KC-135E Stratotanker

The Boeing KC-135 is the United States Air Force’s (USAF) first jet-powered refueling tanker and has been in service since the Vietnam War, working to keep our strategic bombers and other air assets in the air for extended periods. With over 50 years of continual service, the Stratotanker has proven itself a capable, dependable air frame. However, maintenance costs have forced the USAF to begin exploring options for an eventual replacement, such as the KC-46 Pegasus.

Boeing KC-135E Stratotanker

Serial Number: 57-1510

Manufacturer: Boeing

Crew: Three

Engines: Four Pratt & Whitney TF33-PW-102 engines

Wingspan: 130 feet 10 inches

Length: 136 feet 3 inches

Height: 41 feet 8 inches

Weight: 322,500 pounds (maximum)

Speed: 530 mph (cruising); 580 mph (maximum)

Range: 1,500 miles

Service Ceiling: 50,000 feet

Armament: None

Cost: $30,600,000

The KC-135E Stratotanker at Hill Air Force Base

The USAF obtained the KC-135 aircraft at Hill Aerospace Museum in January 1959 where it was assigned to the 901st Air Refueling (Heavy) Squadron of Strategic Air Command at Columbus Air Force Base in Mississippi.

The KC-135 was then reassigned to the 4228th Strategic Wing at Columbus AFB in January 1962. In February 1963, the aircraft was moved to the 454th Bombardment (Heavy) Wing at Columbus AFB. During service with the 454th, the aircraft was deployed to Kadena Air Base in Okinawa, Japan.

After serving in Okinawa, the KC-135 was transferred to the 916th Air Refueling Squadron at Travis Air Force Base in May 1969. From Travis AFB, the aircraft was deployed to the following bases: Eielson Air Force Base in Alaska; Torrejon Air Base in Spain; U Tapao RTAFB in Thailand; Malmstrom Air Force Base; and Anderson Air Base in Guam.

The aircraft was assigned to the Utah Air National Guard in Salt Lake City in April 1978. The aircraft was converted to a KC-135E in July 1982. The aircraft, named “Never Forget,” was the last remaining KC-135E assigned to the 151st Air Refueling Wing of the Utah Air National Guard when it was retired in May 2009. The aircraft flew to Hill Air Force Base on May 21, 2009. On July 18, 2009, the KC-135E was towed from the flight line to Hill Aerospace Museum for display.

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