The S-75’s SM-63-1 launcher could be transported on four wheels, rotated 360 degrees and usually launched the missile at 60 degrees. The SAM’s chief nemeses were the “Wild Weasels,” various U.S. fighters equipped with missiles designed to lock onto and destroy the S-75’s RSNA-75M control radar. (Illustrations by Jim Laurier, from F-105 Wild Weasel vs. SA-2 ‘Guideline’ SAM, Vietnam 1965–1973, by Peter E. Davies (Osprey Publishing, Bloomsbury Publishing))