AGM-78 Standard anti-radar missile

The U.S. Standard anti-radar missile (ARM) was a large, air-launched weapon based on the shipboard RIM-66A/SM-1 surface-to-air missile. It was developed to supplement the AGM-45 Shrike, which had shown range, seeker and warhead-size limitations during early U.S. use in Vietnam.

The missile was a thin cylinder with a pointed nose. Cruciform, long-chord, ultra-low aspect ratio lifting strakes were indexed in line with trapezoidal steerable tail planes.

The first Standard ARM...