The London Midland and Scottish Railway (LMS) Jubilee Class is a class of steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

 designed for mainline passenger work. 191 locomotives were built between 1934 and 1936. They were built concurrently with the LMS Stanier Class 5 4-6-0

LMS Stanier Class 5 4-6-0

The London Midland and Scottish Railway's Class 5 4-6-0, almost universally known as the Black Five, is a class of steam locomotive. It was introduced by William Stanier in 1934 and 842 were built between then and 1951...

.
The last 5 Patriots of Henry Fowler

Henry Fowler (engineer)

Sir Henry Fowler, KBE was a Chief Mechanical Engineer of the Midland Railway and subsequently the London, Midland and Scottish Railway.- Biography :...

's Patriot class

LMS Patriot Class

The Patriot Class was a class of 52 express passenger steam locomotives built for the London Midland and Scottish Railway. The first locomotive of the class was built in 1930 and the last in 1934. All of the Patriot class locomotives were withdrawn from service by 1965...

 on order, 5552 to 5557, were built with William Stanier

William Stanier

Sir William Arthur Stanier, FRS was Chief Mechanical Engineer of the London, Midland and Scottish Railway.- Biography :...

’s taper boiler and so became the first of the Jubilee class. 113 locomotives were ordered straight from the drawing board.