The Navy's "Heavies"
When the subject of big naval aircraft is raised, one usually thinks of the A3D Skywarrior, the largest aircraft to regularly operate from aircraft carriers, or the giant JRM-series Mars flying boats or the Navy's large land-based transports of the R6O Constellation series. Far less known are three Air Force "heavies" that flew in Navy markings: the B-29 Superfortress, B-47 Stratojet, and KC-135 Stratotanker.
Shortly after World War II the Navy acquired four Boeing B-29s, ostensibly to evaluate the role of these long-range aircraft in maritime patrol. The four-engine B-29 was the most advanced bomber flown by the Army Air Forces in World War II.
They carried out intensive attacks against the Japanese home islands beginning in 1944, including devastating incendiary raids that started in March 1945. And, of course, the B-29s Enola Gay and Bockscar brought an end to the Pacific war when they dropped atomic bombs on Hiroshima and Nagasaki in August 1945.