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NACA-TR-635: Theoretical stability and control characteristics of wings with various amounts of taper and twist
Abstract: Stability derivatives have been computed for twisted wings of different plan forms that include variations in both the wing taper and the aspect ratio. Taper ratios of 1.0, 0,50, and 0.25 are considered for each of three ...
NACA-TR-1295: An analysis of once-per-revolution oscillating aerodynamic thrust loads on single-rotation propellers on tractor airplanes at zero yaw
Abstract: A simplified procedure is shown for calculating the once-per-revolution oscillating aerodynamic thrust loads on propellers of tractor airplanes at zero yaw. The only flow field information required for the application of ...
NASA-TP-3099: Effects of yaw angle and Reynolds number on rectangular-box cavities at subsonic and transonic speeds
Abstract: An experimental investigation was conducted to determine the effect of Reynolds number (separate from boundary layer thickness) and the effect of yaw angle on the pressure distribution in a rectangular-box cavity. The ...
NACA-TR-1336: An investigation of single- and dual-rotation propellers at positive and negative thrust, and in combination with an NACA 1-series D-type cowling at Mach numbers up to 0.84
Abstract: An investigation has been made to determine the aerodynamic characteristics of the NACA 4-(5)(05)-041 four-blade, single-relation propeller and the NACA 4-(5)(05)-037 six- and eight-blade, dual-rotation propellers in ...
NACA-RM-L54C16: Experimental effects of propulsive jets and afterbody configurations on the zero-lift drag of bodies of revolution at a Mach number of 1.59
Abstract: The present investigation was made at a free-stream Mach number of 1.59 to compare the afterbody drags to a series of conical boattailed models at zero angle of attack. Afterbody drags were obtained for both the power-off ...
NACA-TR-1109: Experimental investigation of base pressure on blunt-trailing-edge wings at supersonic velocities
Abstract: Measurements of base pressure are presented for 29 blunttrailing-edge wings having an aspect ratio of 3.0 and various airfoil profiles. The different profiles comprised thickness ratios between 0.05 and 0.10, boat tail ...
NACA-TR-819: Formulas for propellers in yaw and charts of the side-force derivative
Abstract: General formulas are given for propellers for the rate of change of side-force coefficient with angle of yaw and for the rate of change of pitching-moment coefficient with angle of yaw. Charts of the side-force derivative ...
NACA-TR-738: Ground effect on downwash angles and wake location
Abstract: A theoretical study was made of the reduction in downwash and the upward displacement of the wake in the presence of the ground, and some verification of theory was obtained by means of air-flow measurements made with a ...
NACA-TR-648: Design charts for predicting downwash angles and wake characteristics behind plain and flapped wings
Abstract: Equations and design charts are given for predicting the downwash angles and the wake characteristics for power-off conditions behind plain and flapped wings of the types used in modern design practice. The downwash charts ...