Accession Number : ADA800600


Title :   Scale and Turbulence Effects on the Lift and Drag Characteristics of the NACA 65 sub 3 -418, a=1.0 Airfoil Section


Descriptive Note : Wartime rept.


Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMIN LANGLEY RESEARCH CENTER HAMPTON VA


Personal Author(s) : Quinn, Jr , John H ; Tucker, Warren A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a800600.pdf


Report Date : Aug 1944


Pagination or Media Count : 32


Abstract : Wind-tunnel tests, investigating low drag wing performance in small-scale tests, showed a large increase in minimum drag coefficient, and a decrease of maximum lift coefficient occurred with decreasing Reynolds Number above certain designated values. The lift-curve slope varied up to 6% between high and low turbulence levels. Low Reynolds Number test data are unreliable for low drag airfoils either to estimate full-scale characteristics or to determine merits of airfoils for higher Reynolds numbers.


Descriptors :   *LOW DRAG AIRFOILS , WIND TUNNEL TESTS , DRAG , LIFT , REYNOLDS NUMBER , AERODYNAMIC CHARACTERISTICS , WINGS


Distribution Statement : APPROVED FOR PUBLIC RELEASE