The Soviets couldn’t be less bold than the Americans. Their “ZEL” system utilized the SM-30 (an experimental MiG-19 model) boosted by a PRD-22R solid fueled rocket. Contrary to the Americans, the Soviets intended to employ this drastic system for point-defence.
Up & Away.
Aviation Rapture 
Like Kelly Johnson said, KISS: keep it stupidly simple!
On a sad note, Bombardier announced that they are discontinuing the production of Learjet’s! Before Rapers made Gulfstream a household name, Learjet was the generic Kleenex name for privet jets, even though, they were rather late to the game.
Another icon hits the dust….