Boeing B-29 Superfortresses
Designed by Boeing, the big B-29 bomber
was built by three companies at four locations, including Martin at
Omaha (after the Air Corps decided to
phase out the B-26). The Martin-built "Enola Gay" and "Bockscar,"
which dropped the two atomic bombs, were
preserved after the war. The former belongs
to the Smithsonian Institution and can be
seen at NASM's Steven F. Udvar-Hazy
Center at Dulles International Airport;
the latter is at the Air Force Museum.