Author points out that indicator cards can be conveniently used to measure horsepower only, and cannot be employed to determine efficiency, which he regards as much more important quantity of two; service tests suggested which should be applied at regular intervals while locomotive is in service. From Indian Ry Conference Assn -- Quarterly Tech Bul, date not specified, and Inst Locomotive Eng -- J v 33 1943 p 77.
Service tests to determine locomotive efficiency
Ry Gaz
Railway Gazette ; 79 , n 8
1943
Aufsatz (Zeitschrift)
Englisch
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