Lenticular Reentry Vehicle

The Lenticular Reentry Vehicle (LRV), according to a November 2000 Popular Mechanics cover story, was an experimental nuclear warhead delivery system under development during the Cold War by defense contractor North American Aviation, managed out of Wright-Patterson Air Force Base in Dayton, Ohio. == Development == The project was classified as secret in 1962 and cleared for public release on December 28, 1999.

Source: Wikipedia — Lenticular Reentry Vehicle (CC BY-SA 4.0)