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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Year: 1944
 Collection: National Advisory Committee for Aeronautics Collection
Accelerations and bottom pressures measured on a B-24D airplane in a ditching test

Accelerations and bottom pressures measured on a B-24D airplane in a ditching test

Date: November 1944
Creator: Steiner, Margaret F.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Accelerations measured at center of gravity and along span of the wing of a B-24D airplane in landing impacts

Accelerations measured at center of gravity and along span of the wing of a B-24D airplane in landing impacts

Date: August 1944
Creator: Westfall, John R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics of the NACA 747A315 and 747A415 airfoils from tests in the NACA two-dimensional low-turbulence pressure tunnel

Aerodynamic characteristics of the NACA 747A315 and 747A415 airfoils from tests in the NACA two-dimensional low-turbulence pressure tunnel

Date: September 1, 1944
Creator: Stivers, Louis S , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic tests of a full-scale TBF-1 aileron installation in the Langley 16-foot high-speed tunnel

Aerodynamic tests of a full-scale TBF-1 aileron installation in the Langley 16-foot high-speed tunnel

Date: December 1, 1944
Creator: Becker, John V & Korycinski, Peter F
Description: The failure of wing panels on a number of TBF-1 and TBM-1 airplanes in flight has prompted several investigations of the possible causes of failure. This report describes tests in the Langley 16-foot high-speed tunnel to determine whether these failures could be attributed to changes in the aerodynamic characteristics of the ailerons at high speeds. The tests were made of a 12-foot-span section including the tip and aileron of the right wing of a TBF-1 airplane. Hinge moments, control-link stresses due to aerodynamic buffeting, and fabric-deflection photographs were obtained at true airspeeds ranging from 110 to 365 miles per hour. The aileron hinge-moment coefficients were found to vary only slightly with airspeed in spite of the large fabric deflections that developed as the speed was increased. An analysis of these results indicated that the resultant hinge moment of the ailerons as installed in the airplane would tend to restore the ailerons to their neutral position for all the high-speed flight conditions covered in the tests. Serious aerodynamic buffeting occurred at up aileron angles of -10 degrees or greater because of stalling of the sharp projecting lip of the Frise aileron. The peak stresses set up in the aileron control linkages ...
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic tests of an AN-M-65-AEON 1000-pound radio-controlled bomb in the LMAL 16-foot high-speed tunnel

Aerodynamic tests of an AN-M-65-AEON 1000-pound radio-controlled bomb in the LMAL 16-foot high-speed tunnel

Date: June 1, 1944
Creator: Pearson, E O , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic tests of an NACA 66(215)-116, a=0.6 airfoil with a 0.25c slotted flap for the Fleetwings XA-39 airplane

Aerodynamic tests of an NACA 66(215)-116, a=0.6 airfoil with a 0.25c slotted flap for the Fleetwings XA-39 airplane

Date: November 1, 1944
Creator: Cahill, Jones F.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Air-consumption parameters for automatic mixture control of aircraft engines

Air-consumption parameters for automatic mixture control of aircraft engines

Date: September 1, 1944
Creator: Shames, Sidney J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Airfoil-contour modifications based on (epsilon)-curve method of calculating pressure distribution

Airfoil-contour modifications based on (epsilon)-curve method of calculating pressure distribution

Date: July 1, 1944
Creator: Theodorsen, Theodore
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Airfoil section data from tests of 10 practical- construction sections of helicopter rotor blades  submitted by the Sikorsky Aircraft Division, United Aircraft Corporation

Airfoil section data from tests of 10 practical- construction sections of helicopter rotor blades submitted by the Sikorsky Aircraft Division, United Aircraft Corporation

Date: September 1, 1944
Creator: Tetervon, Neal
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis and correlation of data obtained by six laboratories on fuel-vapor loss from fuel tanks during simulated flight

Analysis and correlation of data obtained by six laboratories on fuel-vapor loss from fuel tanks during simulated flight

Date: December 1, 1944
Creator: Englert, Gerald W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of a thermal ice-prevention system for wing leading-edge landing-light installations

Analysis of a thermal ice-prevention system for wing leading-edge landing-light installations

Date: January 1, 1944
Creator: Hillendahl, Wesley H
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of available data on control surfaces having plain-overhang and Frise balances

Analysis of available data on control surfaces having plain-overhang and Frise balances

Date: May 1, 1944
Creator: Toll, Thomas A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of available data on the effectiveness of ailerons without exposed overhang balance

Analysis of available data on the effectiveness of ailerons without exposed overhang balance

Date: May 1, 1944
Creator: Crandall, Stewart M. & Swanson, Robert S.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of circular shell-supported frames

Analysis of circular shell-supported frames

Date: May 1, 1944
Creator: Wignot, J. E.; Combs, Henry & Ensrud, A. F.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of circular shell-supported frames

Analysis of circular shell-supported frames

Date: January 1, 1944
Creator: Combs, Henry; Mignot, J E & Ensrud, A F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of Experimental Investigations of the Planing Process of the Surface of Water

Analysis of Experimental Investigations of the Planing Process of the Surface of Water

Date: March 1, 1944
Creator: Sottorf, W.
Description: Pressure distribution and spray measurements were carried out on rectangular flat and V-bottom planing surfaces. Lift, resistance, and center of pressure data are analyzed and it is shown how these values may be computed for the pure planing procees of a flat or V-bottom suface of arbitrary beam, load and speed, the method being illustrated with the aid of an example.
Contributing Partner: UNT Libraries Government Documents Department
Analysis of factors affecting net lift increment attainable with trailing-edge split flaps on tailless airplanes

Analysis of factors affecting net lift increment attainable with trailing-edge split flaps on tailless airplanes

Date: September 1, 1944
Creator: Maggin, Bernard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of square shear web above buckling load

Analysis of square shear web above buckling load

Date: July 1, 1944
Creator: Levy, Samuel; Fienup, Kenneth L & Woolley, Ruth M
Description: A solution of Von Karman's fundamental equations for plates with large deflections is presented for the case of a shear web divided into square panels by reinforcing struts. Numerical solutions are given for struts of infinite rigidity and for struts the weight of which is one-fourth the weight of the sheet. The results are compared with Wagner's diagonal tension theory as extended by Kuhn and by Langhaar. It is found that the diagonal tension theory as developed by Kuhn agrees best with the present paper in the practical range when r=1/4. Kuhn's theory is in especially good agreement for the force in the strut when r=1/4.
Contributing Partner: UNT Libraries Government Documents Department
Analysis of vertical-tail loads in rolling pull-out maneuvers

Analysis of vertical-tail loads in rolling pull-out maneuvers

Date: August 1, 1944
Creator: Gilruth, Robert R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analytical investigation of the effects of elevator-fabric distortion on the longitudinal stability and control of an airplane

An analytical investigation of the effects of elevator-fabric distortion on the longitudinal stability and control of an airplane

Date: May 1, 1944
Creator: Mathews, Charles W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analytical investigation of thermal-electric means of preventing ice formations on a propeller blade

An analytical investigation of thermal-electric means of preventing ice formations on a propeller blade

Date: August 1, 1944
Creator: Scherrer, Richard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Applicability of similarity principles to structural models

Applicability of similarity principles to structural models

Date: July 1, 1944
Creator: Goodier, J N & Thomson, W T
Description: A systematic account is given in part I of the use of dimensional analysis in constructing similarity conditions for models and structures. The analysis covers large deflections, buckling, plastic behavior, and materials with nonlinear stress-strain characteristics, as well as the simpler structural problems. (author).
Contributing Partner: UNT Libraries Government Documents Department
Application of spring tabs to elevator controls

Application of spring tabs to elevator controls

Date: January 1, 1944
Creator: Phillips, William H
Description: Equations are presented for calculating the stick-force characteristics obtained with a spring-tab type of elevator control. The main problems encountered in the design of a satisfactory elevator spring tab are to provide stick forces in the desired range, to maintain the force per g sufficiently constant throughout the speed range, to avoid undesirable "feel" of the control in ground handling or in flight at low airspeeds, and to prevent flutter. Examples are presented to show the design features of spring tabs required to solve these problems for airplanes of various sizes.
Contributing Partner: UNT Libraries Government Documents Department
Application of spring tabs to elevator controls

Application of spring tabs to elevator controls

Date: October 1, 1944
Creator: Phillips, William H
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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