High-speed tests of conventional radial-engine cowlings

Robinson, Russell G Becker, John V
naca-report-745
1942


The drag characteristics of eight radial-engine cowlings have been determined over a wide speed range in the NACA 8-foot high-speed wind tunnel. The pressure distribution over all cowlings was measured, to and above the speed of the compressibility burble, as an aid in interpreting the force tests. One-fifth-scale models of radial-engine cowlings on a wing-nacelle combination were used in the tests.

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http://naca.central.cranfield.ac.uk/reports/1942/naca-report-745.pdf