North American NA-40 Bomber
The North American NA-40 was a bomber prototype developed for the United States Army Air Force. After the crash of the prototype, the type was cancelled and the Air Force ordered the Douglas A-20 Havoc instead. North American used the NA-40B design to develop the NA-62, which competed for the medium bomber contract and was ordered into production as the B-25.
North American NA-40 in original form with R-1830-S63C-G 
North American NA-40 
North American NA-40 
North American NA-40B 
North American NA-40B after installation of R-2600-71 engines 
North American NA-40B 
North American NA-40B 
North American NA-40B 
North American NA-40 With New Glazed Nose 
North American NA-40 
North American NA-40 Cockpit
