SM-64 Navaho

The North American SM-64 Navaho was a supersonic intercontinental cruise missile project built by North American Aviation (NAA). The final design was capable of delivering a nuclear weapon to the USSR from bases within the US, while cruising at Mach 3 (3,700 km/h; 2,300 mph) at 60,000 feet (18,000 m) altitude. The missile was named after the Navajo Nation, starting with "NA" for North American; it is sometimes stated to also be an acronym for North American Vehicle, Alcohol, Hydrogen peroxide, Oxygen, referring to the missile's propellants.
The original 1946 project called for a relatively short-range system, a boost-glide weapon based on a winged V-2 rocket design. Over time the requirements were repeatedly extended, both due to the US Air Force's desire for longer ranged systems, as well as competition from similar weapons that successfully filled the shorter-range niche. This process led to a new design based on a ramjet powered cruise missile, which also developed into a series of ever-larger versions, along with the booster rockets to launch them up to speed.
Through this period the US Air Force was developing the SM-65 Atlas, based on rocket technology developed for Navaho. Atlas...