Germany and the US built some of the largest aircraft in World War II, although many of their designs were unsuccessful.
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Top 11 Insane Nazi Aircraft Ideas That Never Took Off

During the final years of World War II, Nazi Germany pursued dozens of radical aircraft projects in a desperate bid to regain ...
Air power may have proved lethally effective during the First World War, but the technology was still in its infancy. By 1939, however, European air forces as well as North American and Asian powers ...
World War II aircraft were painted in a wide assortment of colors, from shades of gray to olive drab, blue, and camouflage patterns. British planes were painted Dark Earth, Dark Green, and Night — a ...