Rare Nilgiri Mountain Railway Steam Locomotive Blueprint

This is a rare original 1900s blueprint of the Nilgiri Mountain Railway (NMR) Steam Locomotive.  It is 100 years old drawing and has yellowed because of age. The text on the top reads- South Indian Railway, Nilgiri Ry, Metre Gauge, Combination Adhesion And Rack Locomotive, Class “P”, Indent 436/7 B.G.

The text on the top right side reads North British Locomotive Co Ltd, Queen’s Park Works, Glasgow, Maker’s Nos. 19022-19025, L371.  The L371 is the reference number of the engine. The rack system was for the locos to get traction while climbing mountains and ensure that it did not slide back. The geared wheel which is underneath the engine meshes with the toothed center rail.

This is shown in the plan scroll to the 3rd image. Read more Rack railway. It should be noted that the NMR operated the Swiss-made steam locos and not the British ones. This is probably because the British made Locos shown in this drawing may have been used in the early years but later discontinued for the better performing Swiss engines that were more suitable for gradients.

This technical drawing or blueprint measures a huge 52 x 32 inches or 4.4 x 2.8 feet.

Did you know- The NMR is the only railway that uses the rack system in India.

From the collection- Antique Print First Passenger Train From Bombay to Thane 1853.,  Vintage Postcard British Colonial Family In Bullock Cart 1900.,  Antique Print Madras Goods Engine.,   Antique Photo View of Delhi Durbar 1903.,  Raja Ravi Varma’s “Birth of Shakuntala” Oleograph 1894

The images are of the actual items from my collection. And Not a photocopy, pirated, reproduced, or stock photos or taken from other sources.