High Quality Content by WIKIPEDIA articles! The Martin 187 Baltimore was a two-engined light attack bomber built by the Glenn L. Martin Company in the United States, originally ordered by the French in May 1940 as a follow-up to the earlier Martin Maryland, then in service in France. With the fall of France, the production series was diverted to Great Britain. The Baltimore encountered a series of teething development problems, although the type eventually became a highly versatile combat aircraft. Produced in large numbers, the Baltimore was not used in combat by the United States forces, but eventually serviced with the British, Canadian, Australian, South African, Hellenic and the Italian air forces.