The GR9A entered service in October 2006 as an updated and improved version of the already very successful Harrier GR7.  Boasting an improved avionic suite, as well as a much improved weapons capability, the GR9A represents a substantial leap forward in capability over the older GR7 Harriers.
 
Paint Scheme - Harrier GR9A, No.800 Naval Air Squadron, Joint Strike Wing, RAF Cottesmore, 2010