Bulletin No:2

The Bulletin concerned the 'performance and efficiency testing' of a Eastern Region 'B1' Class 2-cylinder 4-6-0 Mixed Traffic Locomotive number 61353.  This loco had been designed by the LNER and had run only 46,000 miles.

The tests were undertaken to establish the following:

bulletThe price in terms of coal and water of hauling different train loads and different speeds over given routes
bulletAn indication of the level of efficiency of the locomotive
bulletMeans of comparing one locomotive with another on a common basis

Testing was undertaken on the static test plant at Rugby and on the line between Carlisle and Skipton, the main testing taking place between Appleby and Dent, a distance of approx 25 miles.

Here is a summary of the tests and a few pictures.

Pictures are credited where known

No:61353 on the static test plant at Rugby
No:61353 pictured at Skipton with a train of 450 tons behind the drawbar and LMS Dynamometer Car No:1
The BR loco diagram for the ex-LNER B1class
One of the many test results shows the maximum speed and HP of the loco amongst other things  - note the  maximum power of  approx.900HP

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