The aircraft will replace Virgin's older A340-300s.
The aircraft replaced the Ilyushin Il-80 in the airborne command and control role.
These aircraft replaced the Cessna 210 at the top end of the Cessna single-engine model line.
The aircraft would replace some of the airline's Boeing 747-400 fleet.
If it had proceeded into service, the aircraft would have replaced the V bombers as the primary delivery system for Britain's nuclear deterrent.
This aircraft replaced the original "Spirit of Disneyland" 737-400 retired at the end of November 2009.
At the time, it was thought that supersonic aircraft would replace the 747.
The new aircraft will replace a fleet of Russian-manufactured Tupolev-142M planes.
The aircraft will replace an aging fleet of F-16AMs.
These aircraft are due for delivery in 2008 and 2009 and will replace Boeing 747-200F.