Rapido Trains UK 845214 MR D301 6-Plank Open - LMS (SDJR Lettering) No.1122

As the last century began, the need to transport higher quantities of minerals arose. The Midland appointed a new General Manager in 1901, and he wanted higher-capacity, longer 10-ton wagons that would give a better payload-to-tare weight ratio. A small experimental batch was produced to these requirements.  

It was quickly determined that this was an impractical solution for the company. There were already enough cut and dried planks to keep the wagon builders busy for the following 3 years, but these were cut to fit the 8-ton design; It would take much longer for timbers to be cut and dried to fit the new design.  

They compromised and elected to go up, rather than out. A 6-plank version of the previous 5-plank open was conceived. This new type of open wagon would also feature a hinged lifting section on the wagon doors' 6th plank. One thousand vehicles were built to this design by the Midland Railway and were constructed between 1901 and 1902. They were assigned as Diagram 301 (D301) when the wagon diagrams were introduced by the Midland Railway in 1907.  

A further 80 were then made for the Somerset and Dorset Joint Railway, which the Midland shared responsibility and ownership of with the London & South Western Railway.  

 No further 10-ton wagons were built to this design, as the Midland opted for a different design when more were required.  

Examples of D301 6-Plank open wagons survived into the grouping, and both the London Midland and Scottish Railway and Southern Railway acquired them. Sadly, there is no evidence of them making it into nationalisation or into preservation.