Vultee XP-68 Tornado

Vultee XP-68 Tornado was proposed American high-altitude interceptor aircraft. It was based on the XP-54 Swoose Goose powered by the Wright R-2160 Tornado 42-cylinder radial engine driving a set of contra-rotating propellers. When the engine was canceled, on 22 November 1941, the XP-68 was also canceled.