| |
| | Steam locomotive basics - section 13, streamlining |
 | | Wind resistance is very small compared to other parts of a locomotive that produce friction - such as the wheels against the rail and the motion of the engine, but, as small as it is, wind resistance increases with the speed of the train. |
 | | In Britain, after exhaustive air tunnel tests, the London, Midland and Scottish Railway introduced 23 streamlined 'Coronation' class locomotives, and the London and North Eastern Railway built its A4 Pacific's - one of which, Mallard, was destined to gain the world speed record for steam locomotives of 126.4 mph. |
 | | One effect noticed with the streamlined locomotives, especially with the LMS Coronations, was that side winds were much more of a brake than head winds as the surface area of the side of the engine was greater than in its unstreamlined state. |
| www.greatwestern.org.uk /basic13.htm (422 words) |
|