Kub

Kub is a surface-to-air missile system made by the Soviet Union. It is called the SA-6 by the United States Department of Defense, and Gainful by NATO. It was used to great effect by the Egyptians in the Yom Kippur War against Israel.

Its form is termed a rocket-in-ramjet, which means that it's a ramjet in flight which at launch is propelled to its ramjet activation speed by a solid-fueled rocket motor contained within the empty space which will be used by the ramjet and which completely burns away.