The revolutionary British-designed Harrier or ' Jump Jet' combat aircraft is capable of Vertical/ Short Take-off & Landing (V/STOL). During the Falklands War in 1982 RAF & Fleet Air Arm Harriers & Sea Harriers flew in action against the invading Argentinean forces. RAF Harriers have also seen active service over Bosnia in Desert Storm 1 & 2 & most recently in Afghanistan. The authors give detailed insights into the construction operation & maintenance of the entire Harrier family but with a particular focus on the RAF's GR3 Cold War warrior.