Excerpts from Books and Wikipedia
"Stephenson's Rocket had the best design; its boiler contained 25 separate tubes enabling the generation of twice as much steam as Trevithick's standard engine. . . . Stephenson drove Rocket himself at the official opening of the railway in September 1830. It was the first line to be run entirely by steam engines and its success heralded the age of the railway." [Furtado: 1001 Days]