The Effect of Spinner-Body Gap on the Pressures Available for Cooling in the NACA E-Type Cowling
NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS LANGLEY FIELD VA LANGLEY AERONAUTICAL LABORATORY
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Tests of a 13-scale model of an NACA E-type cowling were made in the 8-foot high-speed tunnel for the purpose of determining the effect of the gap between the skirt of the hollow spinner and the cowling proper on the pressures available for cooling. It was found that even a large gap 0.096 in. on the model had no appreciable effect on the available cooling pressures.