Design of NACA Cowlings for Radial Air-Cooled Engines (1939)
NASA Technical Reports Server (NTRS) · leaf 5
2 \—NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS … Q, quantity of air flowing through the engine. I □ Figure 1.—Smoke flow over the nose of an N. A. C. A. cowling.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
