ALTHOUGH handicapped by a large frontal area, the radial air‐cooled engine has maintained its popularity up to the present. Recent developments indicate that the type is capable of a substantial increase in effective thrust‐horse‐power, which may help to continue its present advantage. This paper is devoted to a discussion of the present status of the development of radial air‐cooled petrol engines with references to the trend of possible future progress. I believe that this type has a definite place in our present aircraft, but I do not claim that it is superior for all types of service. Whether or not the popular preference for this type will continue must be left to the future.
Taylor, P.B. (1931), "The Thrust of Radial Engines: An Examination of Present Practice with Suggestions for Increasing Effective Thrust Horse‐Power", Aircraft Engineering and Aerospace Technology, Vol. 3 No. 5, pp. 109-113. https://doi.org/10.1108/eb029396
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