National Museum of the USAF   Right Corner Banner
Join the Air Force

Home > Fact Sheets > Boeing KB-50D


Posted 7/7/2009 Printable Fact Sheet
Boeing KB-50D (U.S. Air Force photo)
Boeing KB-50D (U.S. Air Force photo)
Download HiRes

Two B-50Ds (S/N 47-170 and 48-046) were used as a prototypes for the tanker version of the B-50. The aircraft were redesignated KB-50D when equipped with modifications necessary for in flight refueling. The conversions were completed by Hayes Aircraft Corp. in 1957 and included a lengthened tail cone which housed a drogue-type refueling hose. Two additional refueling hoses were fitted in wingtip pods. The Tactical Air Command began receiving KB-50s in 1958 and used them to refuel fighters equipped with refueling probes.

Type Number built/
KB-50D 2 (cv) In-flight refueling tanker prototype

TECHNICAL NOTES (production B-50D):
Armament: 13 .50-cal. machine guns and 28,000 lbs. of bombs; the drop tank pylons were capable of carrying one 4,000-lb. bomb each
Engines: Four Pratt & Whitney R-4360-35 Wasp Major turbosupercharged radials of 3,500 hp each
Maximum speed: 380 mph at 25,000 ft. and combat weight of 123,000 lbs.
Cruising speed: 277 mph
Range: 4,900 miles with 10,000-lb. bomb load; 7,750 miles maximum ferry range
Service ceiling: 36,700 ft.
Span: 141 ft. 3 in.
Length: 99 ft. 0 in.
Height: 32 ft. 8 in.
Weight: 173,000 lbs. (maximum takeoff weight)
Crew: Eight or nine normally [pilot, copilot, flight engineer, bombardier, radio operator, and four gunners (top, tail, left and right)]
Serial numbers: 47-170 (originally B-50D-65-BO) and 48-046 (B-50D-70-BO)

Click here to return to the Bomber Aircraft index.

 Inside the Museum

ima cornerSearch

ima cornerAircraft


tabRelated Links

Museum Virtual TourMuseum Facebook PageMuseum Twitter PageMuseum Instagram
Museum Google Plus PageMuseum Pinterest PageMuseum YouTube ChannelMuseum Flickr Page
Museum PodcastsMuseum E-newsletter Sign-upMuseum RSS Feeds

Site Map      Contact Us     Questions     Security and Privacy notice     E-publishing  
Suicide Prevention    SAPR   IG   EEO   Accessibility/Section 508   No FEAR Act