The "Snark," or SM-62, was "an air-breathing intercontinental weapon designed to be fired from a short mobile launcher by means of two solid-fueled booster rockets. Airborne in four seconds, the Snark was...capable of 650 miles an hour top speed at altitudes of up to 50,000 feet," the museum sign reads. "After a celestial guided flight of up to 6,325 miles, the Snark's airframe separated from its nose cone, and the missile's nuclear warhead followed a ballistic trajectory to its target."
Only one Snark unit was made operational, activated by Strategic Air Command at Presque Isle Air Force Base, Maine, in 1958. It was made obsolete by intercontinental ballistic missiles (ICBMs) in the early 1960s.