1935年10月30日，美国陆军航空队举办了一场竞赛，以确定由哪家公司来打造美国下一代远程轰炸机。
ON OCTOBER 30th 1935, the US Army Air Corps held a competition to see which company would build the country's next-generation of long-range bombers.
1935年10月30日，美国陆军航空队举办了一场竞赛，以确定由哪家公司来打造美国下一代远程轰炸机。
ON OCTOBER 30th 1935, the US Army Air Corps held a competition to see which company would build the country's next-generation of long-range bombers.
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