Inside Out Library · ExplorePressure Drop Across Finned Cylinders Enclosed in a Jacket (1937)NASA Technical Reports Server (NTRS) · leaf 26N.A.C.A. Technical Note No- 621 Fig. 9 V2 ^v8 ^-/sec./sq. ft.NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from Pressure Drop Across Finned Cylinders Enclosed in a JacketMore like this