The Martin MB-2 "was the first U.S.-designed bomber produced in large numbers," according to the museum. It was ordered in 1920 and replaced British- and Italian-made bombers made in the U.S. under license during the first World War.
July 22, 2013 4:00 AM PDT
Photo by: Daniel Terdiman/CNET
| Caption by: Daniel Terdiman
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