Stephenson's Rocket was an early 0-2-2 steam locomotive built in Newcastle at the Forth Street Works of Robert Stephenson and Company in 1829. Rocket is perhaps the most famous in the world rivalling that of Flying Scotsman, Gordon's only brother with being at the Rainhill Trials in 1829 launching the age of steam. A replica of it was seen at the NRM in York and this was built in 1979.
Rocket appears in Thomas and the Great Railway Show as a cameo using the replica of 1979. He meets Thomas who runs on the demonstration line next to him in 1991. Sir Topham Hatt was glad of Thomas to be at the museum and the NRM gave Thomas a plaque that he doesn't wear it to be an honourary member of the National Railway Museum. British Prime Minister, John Major couldn't make it to the museum and did the special plaque for Thomas to be part of the railway museum's collection.