Robert Kennedy watches a test of the Davy Crockett

Robert Kennedy watches a test of the Davy Crockett, 35mm original color negative released as a result of a FOIA (Freedom of Information Act). On July 17, a Davy Crockett was fired from a stationary 155 millimeter launcher (in tandem with simulated battlefield manuevers under Operation IVY FLATS) and detonated about 20 feet above the ground at a distance of 9, 357 feet (1. 7 miles) from the launch point (yield was 18 tons). This test, the last atmospheric detonation at the Nevada Test Site, was observed by At