GWR Castle Class pioneer, 4073 Caerphilly Castle, is seen here in STEAM Swindon wearing the Cheltenham Flyer headboard. The Cheltenham Flyer was for a long time the fastest scheduled passenger service in the world averaging over 60 mph. Share this: Email a link to a friend (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest More Print (Opens in new window) Print Share on Reddit (Opens in new window) Reddit Like this:Like Loading… Related