Aerodynamic characteristics of four NACA airfoil sections designed for helicopter rotor blades

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Partner(s): UNT Libraries Government Documents Department
Collection(s): National Advisory Committee for Aeronautics Collection | Technical Report Archive and Image Library

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Year January February March April May June July August September October November December Total
2015 76 111 107 108 103 75 98 7 685
2014 72 69 89 114 64 72 56 55 56 81 101 101 930
2013 50 85 127 95 63 90 76 89 78 89 108 74 1,024
2012 26 25 29 31 44 43 36 38 60 55 59 59 505
2011 0 0 0 0 0 0 0 0 0 0 0 9 9

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