This fine model of The LMS Princess Coronation class, City of Coventry No 46240, is by R Knox, and was completed over a period of 21 years to the Jim Vass design in 7.25” gauge. It has considerable additional detail, gleaned from works drawings, photographs in Derek Huntriss’ books, the Princess Coronation books from Wild Swan, and three volumes on the class by Ian Sixsmith.

The model is finished as running from Camden shed in 1962. Paint and lining details were obtained from the National Railway Museum, and LMS Locomotive Profiles also published by Wild Swan. Additional information came from photographs and study of No 46229 at the NRM and 46335, Duchess of Sutherland. A wealth of information was also obtained from the study of  City of Birmingham which survives in the condition in which it ran in BR days.

The model has four cylinders fitted with piston valves, supplied with superheated steam. The model was built to be used, and with this in mind the cab roof is removable, and can be replaced with a driving roof with a large cut out giving access to the controls. Running boards are all removable for maintenance. The smokebox has also been built to be removable, and the handrail has been split to allow that. The model was given a First Award at Harrogate 2013.

THE LMS Coronation Class class was designed by William Stanier as an enlarged version of the LMS Princess Royal Class. They were originally built streamlined, though the casing was later removed. They were the most powerful passenger steam locomotives ever to be built for the British railway network, estimated at 3300 horsepower they were far more powerful than the diesel engines that replaced them. City of Coventry was the highest mileage Stanier Pacific, running 1,685,000 miles before being scrapped at Cashmore’s yard in Staffordshire.

R Knox
LMS PRINCESS CORONATION CLASS 
CITY OF COVENTRY