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Boeing KC-46 (767) Pegasus

The Boeing KC-46 Pegasus is an American military aerial refuelling and strategic military transport aircraft developed by Boeing from its 767 jet airliner.

In February 2011, the tanker was selected by the United States Air Force as the winner in the KC-X tanker competition to replace older Boeing KC-135 Stratotankers.

The first aircraft was delivered to the Air Force in January 2019.

The Air Force intends to procure 179 Pegasus aircraft by 2027.

In 2001, the U.S. Air Force began a procurement program to replace around 100 of its oldest KC-135E Stratotankers, and selected Boeing’s KC-767.

The Boeing tanker received the KC-767A designation from the United States Department of Defence in 2002 and appeared in the 2004 edition of DoD model designation report.

The USAF decided to lease 100 KC-767 tankers from Boeing.

US Senator John McCain and others criticized the draft leasing agreement as being wasteful and problematic.

In response to protests, the USAF struck a compromise in November 2003, whereby it would purchase 80 KC-767s and lease 20 more.

In December 2003, the Pentagon announced a freeze on the program over an investigation into alleged corruption that led to the jailing of one of its former procurement executives who applied to work for Boeing.

The KC-767A contract was officially cancelled by the DoD in January 2006.





Seating for up to 114 people, 18 x 463L pallets,


58 patients

(24 litters, 34 ambulatory)


65,000 lb (29,500 kg) payload


165 ft 6 in (50.5 m)


157 ft 8 in (48.1 m)


52 ft 1 in (15.9 m)

Empty weight

181,610 lb (82,377 kg)

Max take-off weight

415,000 lb (188,240 kg)

Fuel Capacity

212,299 lb (96,297 kg)

Fuel Capacity (vol)

31,220 US gal (118,200 l)

Maximum Transfer Fuel Load

207,672 lb (94,198 kg)


2 × Pratt & Whitney PW4062 turbofan,

62,000 lbf (280 kN) thrust each


Maximum speed

570 mph (914 km/h, 500 kn)

Cruise speed

530 mph (851 km/h, 460 kn)


7,350 mi (11,830 km, 6,385 nmi);

Global with inflight refuelling

Service ceiling

40,100 ft (12,200 m).

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