AV-8C Harrier

The Harrier utilizes the concept of “Vectored Thrust,” in which turbine by-pass air is routed to one of two pairs of moveable nozzles at the wing roots, while jet exhaust is directed through the second pair.  The combined “thrusts” enable the airplane to either hover or fly normally depending on the position of the nozzles.  This vertical short take-off and landing (VSTOL) capability allows AV-8s, which in Naval Aviation operate exclusively with the Marine Corps, to fly from makeshift airfields near the front lines or amphibious assault ships, thereby providing a quick response in the close air support of ground troops.