The AV-8 Harrier started out as the Hawker P.1127 in 1957. The P-1127 was the predecessor to the Hawker Siddeley Kestrel. Kestrel was the test aircraft for the RAF, German Luftwaffe and USMC VSTOL (Vertical Short Take-off and Landing) program. The Kestrel was an improved and heavier military version of the P.1127. With a new Pegasus 5 engine the thrust was rated at 15,200 ibs. A Tri-nation test unit was established to conduct flight trials on the new Kestrel. Germany dropped out of the program in 1965. The USMC bought the 6 Kestrels (3 USMC and 3 ex-German aircraft) and shipped them to US test bases. Unfortunately in 1967 after being tested by the US Navy, USAF and US Army interest in the Kestrel disappeared. Even though test flights proved that VSTOL was very useful in tactical air operations the urgency just was not there. The RAF was left to procure and test updated Kestrels in the late 1960's. The Harrier was the final VSTOL aircraft design put into RAF service in 1969. Harrier GR Mk.1 was the first RAF version to see service. The Harrier T Mk.2 was a two seat trainer. After seeing the great success of the Harrier in RAF service the USMC re-evaluated the little VSTOL attack aircraft. Marine Corps pilots were very enthusiastic about the performance of the Harrier. In 1971 the Marine Corps ordered the Harrier to be designated AV-8A in USMC service. Marine Harriers differed from British versions with a redesigned cockpit , upgraded Pegasus Mk.103 engine and simpler weapons attack radar. The USMC found the planes close support ground attack role to be very effective in providing air power for grunts on the front lines. The first Harrier Squadron would be the Flying Nightmares of VMA-513 at Beaufort, South Carolina. With the success of the AV-8A the Marines wanted a larger more powerful Harrier. The AV-8B was produced by McDonnell Douglas Aircraft. The AV-8B is known as the Harrier II. A larger but lighter wing area and upgraed Mk.105 engine make the Harrier II a much more capable attack airframe. Dec. 12,1978 was the 1st flight of the new AV-8B Harrier II in St. Louis, MO. The Harrier II is the mainstay of the USMC frontline close air support aircraft today in 2011. All photos presented here are of AV-8Bs that I've shot over the years. After more than 25 years of service the Harrier II displays at air shows are still very much crowd pleasers. Very loud displays but always thrilling. Enjoy the Photos! Copyright 2011