Royal Air Force Germany was the chief operator of the RAF's Harriers during the Cold War. Its Harrier Force remains the only unit to have routinely taken large numbers of fast-jet aircraft into unprepared fields and woods, operating them in constant readiness for combat. This book, the first of three volumes on the RAF Germany Harrier Force, describes how the aircraft was developed from a simple proof-of-concept prototype into a much more complex war machine, overcoming the extraordinary demands of vertical flight. It tells of the forming of the Harrier Wing at RAF Wildenrath in 1970, and how its people learned the hard way to fly and operate the 'jump jet' on base and in the field during those accident-laden early years. Volume I concludes at the end of 1973 when, having proven its capabilities, the Harrier Wing became the Harrier Force.