| | Reference.com/Encyclopedia/Hawker Siddeley Harrier |
 | | The Harrier continues to serve today as the Harrier GR7 and GR9 and AV-8B which are built by BAE Systems and Boeing. |
 | | The Harrier GR Mk.1 was the first production model of the Kestrel, it first flew on December 28, 1967, and entered service with the RAF on April 1, 1969. |
 | | The later model Harriers are easily distinguished by their extended wingspan, the wings extending beyond the outrigger wheels that are at the wingtips of the earlier versions (including Kestrel prototypes and the Sea Harrier). |
| www.reference.com /browse/wiki/Hawker_Siddeley_Harrier (782 words) |