This year also marks 50 years of the RAF's 'Battle Of Britain Memorial Flight', which Spits feature prominently, as well as two Hurricanes and one of only two airworthy Lancasters.
The crews are drawn from operational RAF pilots, thus enabling them to add a WW2 type to their logbook of current RAF aircraft.
Recently, the Lanc got a new paint scheme depicting yet another aircraft which flew many missions, after a complete overhaul.
Much of the BBMF fleet saw operational WW2 service, one Spit even having fought in the Battle Of Britain in 1940.
The BBMF link below has a section with considerable detail of the operational history of each aircraft.
Well known at both airshows and prominent national events, it's quite a thing to hear 6 Merlin engines in unison, as the Lanc and a Spit and Hurricane approach and fly over.
Perhaps their greatest asset is that people like me, born decades after WW2, can identify the sound of these engines at a considerable distance because of their continued operation.
[Edited 2007-05-21 19:53:56]
[Edited 2007-05-21 19:58:16]