The Robinson J11 (GCR Class 9J) 0-6-0 Locomotives

The Great Central Railway (GCR) Class 9J (LNER J11) was Robinson's first goods locomotive design. Developed from the earlier J10, the J11 incorporated a larger boiler and a small increase in cylinder diameter to 18.5in. The boiler diameter was increased from 4ft 4in to 5ft. Both the boiler barrel length and firebox were lengthened, resulting in an increase in the wheelbase, and an increase in the firebox grate area. The boiler pressure was also increased from 160psi to 180psi. An initial batch of forty J11s were built by Neilson, Reid & Co in 1901-2. These were quickly followed by eleven further batches built between 1902 and 1910. Most of these were much smaller, although a large batch of forty eight was built at Gorton in 1906-8. Beyer, Peacock & Co; Vulcan Foundry; and the Yorkshire Engine Co. also built some of the batches. A total of 174 J11s were built. The J11s quickly acquired the nickname of "Pom-Poms" due to the similarity of their exhaust noise to that of the "Pom-Pom" quick-firing gun used in the South African War. The J11s were designed for and mainly used for freight traffic. However, they were used for some passenger services and their passenger duties tended to increase over time. Gorton often used them for passenger traffic until diesel railcars were introduced. Although J11 passenger duties tended to be limited to stopping services, they were occasionally used for express services in an emergency. For example, during the 1930s they were used in an emergency to haul the Manchester to Liverpool expresses on a number of occasions. The J11s could operate at a reasonable speed, and the Thompson piston-valve rebuild J11/3 engines were timed at 60mph on a number of occasions.

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Robinson J11 (GCR Class 9J) 0-6-0 Locomotives - Railway-Photography
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