The first of these was his powerful D-tank for suburban passenger work.
A larger version for express passenger work, the "Richmond class", was introduced in 1877.
It left the shop on May 29 and was sent to the Willmar, Minnesota division for passenger work.
They were designed by William Dean for passenger work.
Built for passenger work on non-electrified lines in Spain, and were intended to replace older Class 333s.
Otherwise, the class remained intact until 1962, and was still operating on express passenger work.
However, for passenger work, the aim was greater speed.
They were conceived as mixed traffic locomotives equally suitable for goods and passenger work.
The start of World War I meant the ship was not used for passenger work.
The speeds required for suburban passenger work wore the engines out in a remarkably short time.