![Sounds made by idling steam locomotive - Trains Magazine - Trains News Wire, Railroad News, Railroad Industry News, Web Cams, and Forms Sounds made by idling steam locomotive - Trains Magazine - Trains News Wire, Railroad News, Railroad Industry News, Web Cams, and Forms](http://www.billcaid.com/2010/HogHunting20100323/Part29/JPEG/img-21.jpg)
Sounds made by idling steam locomotive - Trains Magazine - Trains News Wire, Railroad News, Railroad Industry News, Web Cams, and Forms
![Why did some classes of Steam Locomotives have Air Compressors/Pumps on the front of their smoke boxes, and what did the compressor/pump do? : r/trains Why did some classes of Steam Locomotives have Air Compressors/Pumps on the front of their smoke boxes, and what did the compressor/pump do? : r/trains](https://preview.redd.it/v6vwv3qji0d91.jpg?width=220&format=pjpg&auto=webp&s=c24cb58e8f28f8f221f1ec7c35166ae48df33e64)
Why did some classes of Steam Locomotives have Air Compressors/Pumps on the front of their smoke boxes, and what did the compressor/pump do? : r/trains
![The front end of the steam locomotive 'Princess Elizabeth' showing the pump for the air braking system Stock Photo - Alamy The front end of the steam locomotive 'Princess Elizabeth' showing the pump for the air braking system Stock Photo - Alamy](https://c8.alamy.com/comp/CT0EGH/the-front-end-of-the-steam-locomotive-princess-elizabeth-showing-the-CT0EGH.jpg)
The front end of the steam locomotive 'Princess Elizabeth' showing the pump for the air braking system Stock Photo - Alamy
![purpose of cylinders on front of steam loco? - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums purpose of cylinders on front of steam loco? - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums](https://i.imgur.com/CZ9CozQ.png)
purpose of cylinders on front of steam loco? - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums
![Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nder of the air compressor. Thisfor the reason that alioul 85 per cent, otthe repair Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nder of the air compressor. Thisfor the reason that alioul 85 per cent, otthe repair](https://c8.alamy.com/comp/2CH3EER/railway-and-locomotive-engineering-a-practical-journal-of-railway-motive-power-and-rolling-stock-nder-of-the-air-compressor-thisfor-the-reason-that-alioul-85-per-cent-otthe-repair-work-necessary-to-be-done-onthe-air-valve-parts-of-the-locomotive-the-pinnp-or-compressor-will-not-be-toogood-if-an-air-pump-is-defective-in-the-aircylinder-it-may-be-expected-to-run-hotand-scatter-quite-an-amount-of-partiallyburned-oil-and-gummy-substance-through-out-the-entire-brake-system-of-the-loco-motive-and-to-result-in-the-carrying-of-agreat-deal-of-water-from-the-main-reser-voirs-into-the-lirake-pip-2CH3EER.jpg)