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- 2 January 2011
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I'm looking for sources of information describing in detail the USAAC Project A and Project D of the early 1930s.
My preference is always original documents, but books with detailed descriptions and references are also quite welcome.
I appreciate any information provided.
AlanG
My preference is always original documents, but books with detailed descriptions and references are also quite welcome.
I appreciate any information provided.
AlanG