THE greater part of the development of the components of a complicated mechanism, such as an aircraft engine, can with advantage be done apart from the mechanism as a whole. The study of any part can be more complete and improvements in operation effected more readily when it is not necessary to keep the whole working. A carburettor is in many respects a complete unit whose action may be studied with advantage apart from the engine with which it will be used. While the ultimate criterion of the performance of a carburettor is its behaviour on an engine, a great deal can be learned from suitable bench tests in which the engine is replaced by a suction plant; more use could be made of such testing methods than is done at present.
Clothier, W.C. (1938), "Bench Testing of Carburettors: Some Methods in Use with Particular Reference to Mixture Characteristics", Aircraft Engineering and Aerospace Technology, Vol. 10 No. 9, pp. 274-281. https://doi.org/10.1108/eb030366
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