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KC-135 Stratotanker

The " title="Boeing">Boeing KC-135 Stratotanker's is an " title="Aerial refueling">aerial refueling tanker " title="Aircraft">aircraft, first manufactured in " title="1956">1956 and expected to remain in service for about two decades beyond the present.

United States Air Force KC-135 Stratotanker and F-22 Raptor.

Boeing's 367-80 was the basic design for the commercial " title="Boeing 707">Boeing 707 passenger aircraft as well as the KC-135A Stratotanker. In " title="1954">1954 the " title="United States Air Force">USAF ordered the first 29 of its future fleet of 732. The first aircraft flew in August 1956 and the initial production Stratotanker was delivered to Castle Air Force Base, California, in June " title="1957">1957. The last KC-135 was delivered to the Air Force in " title="1965">1965.

Of the original KC-135A's, more than 410 have been modified with new CFM-56 engines produced by CFM-International. The re-engined tanker, designated either the KC-135R or KC-135T, can offload 50 percent more fuel, is 25 percent more fuel efficient, costs 25 percent less to operate and is 96 percent quieter than the KC-135A.

Under another modification program, 157 Air Force Reserve and Air National Guard tankers were re-engined with the TF-33-PW-102 engines. The re-engined tanker, designated the KC-135E, is 14 percent more fuel efficient than the KC-135A and can offload 20 percent more fuel.

Through the years, the KC-135 has been altered to do other jobs ranging from flying command post missions to reconnaissance. The EC-135C was U.S. Strategic Command's flying command post. One EC-135C is on alert throughout the " title="Cold War">Cold War, ready to take to the air and control bombers and missiles if ground control is lost. RC-135 Rivet Joints are used for special reconnaissance and Air Force Material Command's NKC-135A's are flown in test programs. The Air Combat Command operates the " title="OC-135 Open Skies">OC-135 Open Skies as an observation platform in compliance with the " title="Open Skies Treaty">Open Skies Treaty.

Over the next few years (" title="2003">as of 2003), the aircraft will undergo upgrades to expand its capabilities and improve its reliability. Among these are improved communications, navigation and surveillance equipment to meet future civil air traffic control needs. The Multi-Point Refueling System Program will add hose and drogue refueling pods near the wingtips, allowing it to service multiple aircraft, and to service probe-carrying aircraft without an adapter.

Four turbofans, mounted under 35-degree swept wings, power the KC-135 to takeoffs at gross weights up to 322,500 pounds (146,285 kilograms). Nearly all internal fuel can be pumped through the " title="Tanker">tanker's flying boom, the KC-135's primary fuel transfer method. A special shuttlecock-shaped drogue, attached to and trailing behind the flying boom, may be used to refuel aircraft fitted with probes. An operator stationed in the rear of the aircraft controls the boom. A cargo deck above the refueling system can hold a mixed load of passengers and cargo. Depending on fuel storage configuration, the KC-135 can carry up to 83,000 pounds (37,648 kilograms) of cargo.

In Southeast Asia, KC-135 Stratotankers made the air war different from all previous aerial conflicts. Midair refueling brought far-flung bombing targets within reach. Combat aircraft, no longer limited by fuel supplies, were able to spend more time in target areas.

AMC manages more than 546 total aircraft inventory Stratotankers, of which the Air Force Reserve and Air National Guard fly 292 of those in support of AMC's mission.

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