The Great Central Railway Class 9N, classified A5 by the LNER, was a class of 4-6-2 tank locomotives designed by John G. Robinson for suburban passenger services. They were fitted with superheaters, piston valves and Stephenson valve gear.

Mr. Ivatt’s new single wheeler, No. 266, had already been running sufficiently long to prove its success in first-class express work, and another engine of a similar type was put in hand.

The Robinson A5 (GCR Class 9N) Pacific Tank Locomotives. The Great Central Railway (GCR) Class 9N (LNER Class A5) was Robinson's last passenger tank design. They were designed to pull the difficult suburban services out of Marylebone, which they performed admirably for …

The LNER adopted the GNR classification system by wheel arrangement, with the A-prefix indicating the most prestigious wheel arrangement. The GNR Class A1s remained Class A1 and the NER Pacifics were reclassified A2. The LNER also used Pacific tank engines, initially classified A5-7 and were eventually joined by a class A8.

As is customary, engine classes are organized according to the man who was locomotive superintendent when the class was introduced, and to whom the design is often attributed. Six men held this post during the existence of the Great Northern Railway.

The Great Central Railway Class 9N, classified A5 by the LNER, was a class of 4-6-2 tank locomotives designed by John G. Robinson for suburban passenger services. They were fitted with superheaters, piston valves and Stephenson valve gear. The GCR built 21 locomotives at Gorton Works in three batches between 1911 and 1917.

The Great Central Railway (GCR) Class 9N (LNER Class A5) was Robinson's last passenger tank design. They were designed to pull the difficult suburban services out of Marylebone, which they performed admirably for over 30 years.

This engine was constructed to prove to the directors of the Great Northern Railway that it was quite practicable to reach Edinburgh from King’s Cross in eight hours by only stopping at Grantham, York, Newcastle and Berwick.

Henry Ivatt's 7'6" 4-2-2 singles for the Great Northern Railway, classes A4 & A5. The single Nº266 had 18¼" bore cylinders and was regarded as class A4, the later Nº267 and the following production batch of ten had 19" cylinders. See also category: GNR Ivatt single class A4. This category contains only the following file.

2015年9月19日 · This wind-up tinplate model of Great Northern Railway (GNR) 4-2-2 Single steam locomotive No. 266 is on display at the National Railway Museum. GNR 266 was a unique A4-class prototype designed by Henry Ivatt in 1898 and put into production in 1900 as the A5, one of the last Singles to enter service in Britain.