Inside Out Library · ExplorePerformance of Air-cooled Engine Cylinders Using Blower Cooling (1936)NASA Technical Reports Server (NTRS) · leaf 23Fig. 4 N.A.C.A. Technical Note No.572NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from Performance of Air-cooled Engine Cylinders Using Blower CoolingMore like this
