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NORTH AMERICAN TB-25

Posted 6/26/2009 Printable Fact Sheet
 
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North American TB-25H
North American TB-25H (originally B-25H-5-NA, S/N 43-4460) assigned to the Air Weather Service. (U.S. Air Force photo)
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Almost every model of the B-25 was used at some point as a trainer or transport variant. The first examples were the AT-24 advanced trainers. There were four models (A to D) of the AT-24 and sixty aircraft were converted from B-25C, D, G and J models. These aircraft were later redesignated TB-25C, D, G and J.

Next, a number of B-25H and J models were converted after the end of World War II for duties ranging from personnel/light cargo transports to pilot trainers. These aircraft were generally redesignated as TB-25H or TB-25J.

Finally, a number of B-25Js were modified to become TB-25K, L, M and N aircraft. The TB-25K, converted by Hughes, had an E1 radar fire control system installed. The L model conversion, done by Hayes, upgraded the aircraft into a twin-engine transitional pilot trainer. The B-25M was similar to the K model except Hughes installed an E5 radar fire control system in place of the E1 system. Similarly, the B-25N was an improved L model done by Hayes.

The first flight of a B-25 was on Aug. 19, 1940, and the last aircraft was retired from USAF service in May 1960; however, B-25s flew with the Air National Guard well into the 1960s completing more than 20 years of service.


Type Number built/
converted
Remarks
AT-24A 60 (total) (cv) Became TB-25D
AT-24B AT-24A through AT-24D Became TB-25G
AT-24C   Became TB-25C
AT-24D   Became TB-25J
TB-25J 600 Post-war pilot trainer conversions
TB-25K 117 Hughes E1 fire control radar
TB-25L 90 Hayes pilot trainer conversion
TB-25M 40 Hughes E5 fire control radar
TB-25N 47 Hayes pilot trainer conversion


Notes: AT-24D were converted from B-25J and became TB-25J, but post-war conversions (also designated TB-25J) brought the total to 600. Some B-25J were converted to transports and designated CB-25J.

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