Analysis and Calculation by Integral Methods of Laminar Compressible Boundary-Layer With Heat Transfer and With and Without Pressure Gradient (open access)

Analysis and Calculation by Integral Methods of Laminar Compressible Boundary-Layer With Heat Transfer and With and Without Pressure Gradient

From Introduction: "The purpose of the present report is to present a comprehensive summary of theoretical investigations of comprehensible laminar boundary layers which have been carried out since 1949 at the Polytechnic Institute of Brooklyn under the sponsorship and with the financial assistance of the National Advisory Committee for Aeronautics. The results of these investigations are contained primarily in references 1 to 7."
Date: April 12, 1955
Creator: Morduchow, Morris
System: The UNT Digital Library
Aerodynamic characteristics and flying qualities of a tailless triangular-wing airplane configuration as obtained from flights of rocket-propelled models at transonic and supersonic speeds (open access)

Aerodynamic characteristics and flying qualities of a tailless triangular-wing airplane configuration as obtained from flights of rocket-propelled models at transonic and supersonic speeds

Report discussing a flight investigation of rocket-powered models of a tailless triangular-wing airplane configuration was made through the transonic and low supersonic speed range at the Langley Pilotless Aircraft Research Station at Wallops Island, Va. An analysis of the aerodynamic coefficients, stability derivatives, and flying qualities based on the results obtained from the successful flight tests of three models is presented.
Date: November 1956
Creator: Mitcham, Grady L.; Stevens, Joseph E. & Norris, Harry P.
System: The UNT Digital Library
Aerodynamics of slender wings and wing-body combinations having swept trailing edges (open access)

Aerodynamics of slender wings and wing-body combinations having swept trailing edges

From Introduction: "In the present paper, a general method is developed for solving low-aspect-ratio problems involving shed vortex sheets. Both direct and inverse problems are considered. The method is applicable for all planar problems where the velocity boundary conditions can be made homogeneous by differentiation in either the streamwise or the spanwise directions."
Date: March 1954
Creator: Mirels, Harold
System: The UNT Digital Library
An analytical investigation of airplane spin-recovery motion by use of rotary-balance aerodynamic data (open access)

An analytical investigation of airplane spin-recovery motion by use of rotary-balance aerodynamic data

From Introduction: "Many investigations have been made in the Langley 20-foot free-spinning tunnel in which the natures of airplane spins and recoveries have been determined experimentally with dynamically scaled-down models. The results of some of these investigations are presented in references 1 to 5."
Date: June 1954
Creator: Scher, Stanley H.
System: The UNT Digital Library
Analytical investigation of acceleration restriction in a fighter airplane with an automatic control system (open access)

Analytical investigation of acceleration restriction in a fighter airplane with an automatic control system

From Introduction: "In the present report, consideration is given to certain features intended to improve the accleration-limiting characteristics of a normal-accleration control system."
Date: January 1958
Creator: Matthews, James T., Jr.
System: The UNT Digital Library
Abnormal grain growth in nickel-base heat-resistant alloys (open access)

Abnormal grain growth in nickel-base heat-resistant alloys

From Introduction: "The data included in this report for Nimonic 80A alloy, for instance, represent experiments carried out to help clarify a production problem of grain-size control in an alloy which has been extensively used. The general procedure of the investigation was to carry out controlled laboratory experiments on samples of bar stock to find conditions of heating and hot-working which resulted in abnormal grain growth."
Date: December 1957
Creator: Decker, R. F.; Rush, A. I.; Dano, A. G. & Freeman, J. W.
System: The UNT Digital Library
An Analysis of Ramjet Engines Using Supersonic Combustion (open access)

An Analysis of Ramjet Engines Using Supersonic Combustion

From Introduction: "The concept of supersonic combustion is by no means new, although little work appears to have been published on the subject. For example, an analysis of supersonic combustion to provide lift under a wing is given in reference 1. Reference 2 discusses applications to hypersonic ramjets being studied at the University of Michigan."
Date: September 1958
Creator: Weber, Richard J. & MacKay, John S.
System: The UNT Digital Library
An Analytical Investigation of the Effect of the Rate of Increase of Turbulent Kinetic Energy in the Stream Direction on the Development of Turbulent Boundary Layers in Adverse Pressure Gradients (open access)

An Analytical Investigation of the Effect of the Rate of Increase of Turbulent Kinetic Energy in the Stream Direction on the Development of Turbulent Boundary Layers in Adverse Pressure Gradients

"The purpose of this paper is to provide a derivation of the general integral form of the boundary equation without neglecting the Reynolds normal-stress term. Two special cases of this equation are given explicitly" (p. 2).
Date: November 1953
Creator: Rashis, Bernard
System: The UNT Digital Library
Analysis of the Ultimate Strength and Optimum Proportions of Multiweb Wing Structures (open access)

Analysis of the Ultimate Strength and Optimum Proportions of Multiweb Wing Structures

From Introduction: "The results are presented in the form of a structural-efficiency chart where minimum structural weight is plotted as a function of the structural index for constant values of the ratio of wing depth to skin thickness."
Date: March 1956
Creator: Rosen, B. Walter
System: The UNT Digital Library
Acoustic radiation from two-dimensional rectangular cutouts in aerodynamic surfaces (open access)

Acoustic radiation from two-dimensional rectangular cutouts in aerodynamic surfaces

From Introduction: "The experiments in high-speed flow showed that an intense, high-frequency acoustic radiation is an essential feature of the problem. Consequently, a study of the acoustic field (involving schlieren observations and frequency and intensity measurements) was undertaken. This report presents the salient features of the study, which was mainly exploratory."
Date: August 1955
Creator: Krishnamurty, K.
System: The UNT Digital Library
An Analysis of Pressure Studies and Experimental and Theoretical Downwash and Sidewash Behind Five Pointed-Tip Wings at Supersonic Speeds (open access)

An Analysis of Pressure Studies and Experimental and Theoretical Downwash and Sidewash Behind Five Pointed-Tip Wings at Supersonic Speeds

The following report covers an investigation that was done to supplement available experimental data on flow fields behind wings of an aircraft at supersonic speeds, as well as to furnish more quantitative information on the choice of the theoretical method for a given configuration and the accuracy to be expected when using such a method.
Date: April 21, 1954
Creator: Boatright, William B.
System: The UNT Digital Library
An analytical study of the effect of airplane wake on the lateral dispersion of aerial sprays (open access)

An analytical study of the effect of airplane wake on the lateral dispersion of aerial sprays

From the Introduction: "In the present reports the paths of liquid spray droplets issued in the flow field behind an airplane are calculated."
Date: 1954
Creator: Reed, Wilmer H., III
System: The UNT Digital Library
Aerodynamic heating of a thin, unswept, untapered, multiweb, aluminum-alloy wing at Mach numbers up to 2.67 as determined from a free-flight investigation of a rocket-propelled model (open access)

Aerodynamic heating of a thin, unswept, untapered, multiweb, aluminum-alloy wing at Mach numbers up to 2.67 as determined from a free-flight investigation of a rocket-propelled model

From Introduction: "The heat-transfer data calculated from measured temperatures are compared with values calculated by the theory of Van Driest for a flat plate with laminar and turbulent boundary layers. In addition, the heat-transfer data from the flight tests are compared with data obtained from the Langley Structures Research Division of ground tests of an identical wing at a Mach number approximately equal to 1.99 in the pre-flight jet of the Langley Pilotless Aircraft Research Station at Wallops Island, Va. The stream static pressure is maintained at about 1 atmosphere, the free-stream temperature at about 75^o F, and the stagnation temperature at approximately 500 ^o F (ref.1)."
Date: August 6, 1957
Creator: Strass, H. Kurt & Stephens, Emily W.
System: The UNT Digital Library
The appearance of a boric oxide exhaust cloud from a turbojet engine operating on trimethylborate fuel (open access)

The appearance of a boric oxide exhaust cloud from a turbojet engine operating on trimethylborate fuel

From Summary: "Data are included on the amount of fallout from the cloud and the concentration of boric oxide in the cloud."
Date: August 10, 1956
Creator: Lord, Albert M. & Kaufman, Warner B.
System: The UNT Digital Library
Application of a Windshield-Display System to the Low-Altitude Bombing Problem (open access)

Application of a Windshield-Display System to the Low-Altitude Bombing Problem

From Introduction: "The design and flight evaluation of an airborne target simulator for use in tracking studies of fighter-type airplanes equipped with optical gunsights have recently been reported (ref. 1). In this equipment the target airplane was represented by a movable dot of light projected on the windshield of the test airplane."
Date: January 4, 1957
Creator: Barnett, Robert M.; Kauffman, William M. & Fulcher, Elmer C.
System: The UNT Digital Library