Talk:Superbolt

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Super-bolt is often used as a reference to the Republic XP-72. These were bubbletop Thunderbolts equipped with the Pratt and Whitney R-4360 engine. They were characterized by an elongated nose to accommodate the four-row 28-cylinder engine and a large air scoop under the fusilage. Two prototypes were built. One had a four-bladed Curtiss propeller and the other had a six-bladed contraprop. The program was cancelled in 1945 in the face of limited post-ward funding and the realization that the future of combat aviation lay with jet technology.