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Boeing B-39 'Superfortress'

Description
  Manufacturer:Boeing
  Base model:B-39
  Designation:B-39
  Nickname:Superfortress
  Designation System:U.S. Air Force
  Designation Period:1924-Present
  Basic role:Bomber
  Status:Experimental

Specifications

Propulsion

Performance


 

Recent comments by our visitors
 Michael Becker
 OSWEGO, IL
By the time the XB-39 flew, the Army had decided not to proceed with production of the V-3420, so the B-39, unlike the B-38, was never considered for production. Rather, it served to prove the concept that the B-29 airframe would benefit from increased power. This led to the installation of Pratt & Whitney R-4360s in 42-93845, which became the XB-44. After a major redesign, it entered production in 1946 as the B-50.
06/22/2014 @ 10:52 [ref: 68522]
 Howard Whitehurst
 , NC
If you look at the serial number on the aircraft, you will see that the airframe was one of the first - the first digit of "1" means that fiscal year 1941 money was used to pay forth aircraft. It is mostly an A model B-29.
02/13/2014 @ 09:35 [ref: 68345]
 Stephen Samuel Winkler
 Canyon Country, CA
The Allison V-3420 in-line, liquid-cooled engines had twenty-four cylinders. Earlier, Lockheed had modified the Boeing B-17 with the Allison V-1710 in-line, liquid-cooled, twelve-cylinder engines to increase performance and power in the Lockheed XB-38 and the Boeing Company atttempted to do the same thing with the Boeing B-29. However, heavy demands for the Allison engines by other aircraft led to the cancellation of both projects.
03/09/2006 @ 10:58 [ref: 12745]
 Dave
 , VA
Those are liquid cooled engines. They are Allison V-3420's. This is essentially a pair of Allison V-1710 twelve-cylinder liquid-cooled Vee engines coupled to a single propeller shaft.
03/09/2004 @ 01:05 [ref: 6936]
 T. ALLISON
 , PA
The engines on this bomber appear to be liquid cooled, inline type, not the radials that were on the B50.
02/19/2002 @ 21:41 [ref: 4355]
 T. ALLISON
 , PA
The engines on this bomber appear to be liquid cooled, inline type, not the radials that were on the B50.
02/19/2002 @ 21:40 [ref: 4354]
 JL
 , FL
This Aircraft looks very much like the B-50 used in the Korean
Conflict.
08/01/2000 @ 13:42 [ref: 521]

 

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