The Douglas TBD-1 Devastator was designed as a torpedo bomber for the USN and
entered service in 1937. The TBD Devastator marked a lot of firsts for the USN. It was the
first widely-used carrier-based monoplane, first all metal USN aircraft, first completely
enclosed cockpit that stretched almost half the length of the fuselage, first hydraulic
folding wings. When bombing the bombardier would lie under the pilot seat and look
through a window in the floor to doing his sighting.