Production of the MB-2 was handled by a variety of contractors though it was an original Martin design. At the time, such was the policy of the US Army Air Service to enlist the help of low-bidding agencies to handle production. The companies involved included the Martin Company (production of the first 20 examples), Curtiss production of 50 examples), Lowe, Willard & Fowler (production of 35 examples) and Aeromarine (production of 25 examples). The MB-2 would stay in service until it was gradually replaced by the Keystone series of bombers becoming available in the coming decade.
The MB-2/NBS-1 saw service solely with the United States of America.
Content ©MilitaryFactory.com; No Reproduction Permitted.