Planet

Planet was an early steam locomotive built in 1830 by Robert Stephenson and Company for the Liverpool and Manchester Railway. History The ninth locomotive built for the L&MR, it was Stephenson's next major design change after the Rocket. It was the first locomotive to employ inside cylinders, and subsequently the 2-2-0 type became known as Planets. On 23 November 1830 No.9 Planet ran the approximately from Liverpool to Manchester in one hour. It only lasted in service about ten years; having been rebuilt in 1833, it was withdrawn circa 1840–1841. Planet-type locomotives