The pressure available for ground cooling in front of the cowling of air-cooled airplane engines

Stickle, George W Joyner, Upshur T
naca-tn-673
November 1938


A study was made of the factors affecting the pressure available for ground cooling in front of a cowling. Most of the results presented were obtained with a set-up that was about one-third full scale. A number of isolated tests on four full-scale airplanes were made to determine the general applicability of the model results. The full-scale tests indicated that the model results may be applied qualitatively to full-scale design and quantitatively as a first approximation of the front pressure available for ground cooling.

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