Just ran across this, had never heard of it before. In 1957 the Convair division of General Dynamics Corporation was developing this air-to-air lenticular missile. It was supposed to be a defensive missile for the B-70 Valkyrie bomber. The specifications for the proposed system called for an air-launched defensive missile, capable of engaging incoming missiles at relative speeds of up to Mach 7, surviving a rate of acceleration between 60 g to 250 g, and being able to undertake rapid terminal...