The North American SM64 Navaho was an early surfacetosurface nuclear armed cruise missile that never really was very successful. But it did influence later successful cruise missile designs such as the operational AGM28 Hound Dog missile carried by the B52 Stratofortress under Strategic Air Command use during the 1960's and early 1970's. Here's a look at, what I believe is, the only SM64 on display anywhere in the world at the Cape Canaveral Space Force Base in Florida.