Collection and summary of flap-type-aileron rolling-effectiveness data at zero lift as determined by rocket-powered model tests at Mach numbers between 0.6 and 1.6 (open access)

Collection and summary of flap-type-aileron rolling-effectiveness data at zero lift as determined by rocket-powered model tests at Mach numbers between 0.6 and 1.6

Report presenting a collection and summary of the wing-aileron rolling-effectiveness data obtained as part of an investigation of lateral control using rocket-powered test vehicles in free flight over a range of Mach numbers. Some effects of trailing-edge angle, aileron-chord ratio, aileron span and location, aspect ratio, wing sweepback, and wing-tail interference are provided.
Date: September 2, 1955
Creator: Strass, H. Kurt; Stephens, Emily W.; Fields, E. M. & Schult, Eugene D.
System: The UNT Digital Library
Analysis of effects of airplane characteristics and autopilot parameters on a roll-command system with aileron rate and deflection limiting (open access)

Analysis of effects of airplane characteristics and autopilot parameters on a roll-command system with aileron rate and deflection limiting

From Summary: "The dynamic characteristics of an airplane with a proportional-gain roll-control autopilot are discussed. A comparison of three different high-speed fighter airplanes is presented. The dynamic effects of time lags and various gains in the system are described."
Date: September 2, 1955
Creator: Schy, Albert A. & Gates, Ordway B., Jr.
System: The UNT Digital Library
Theoretical investigation of the effects of configuration changes on the center of pressure shift of a body-wing-tail combination due to angle of attack and Mach number at transonic and supersonic speeds (open access)

Theoretical investigation of the effects of configuration changes on the center of pressure shift of a body-wing-tail combination due to angle of attack and Mach number at transonic and supersonic speeds

Report presenting a theoretical investigation to study the effects of systematic changes in configuration of a representative airframe on the center-of-pressure travel due to changes in angle of attack and in Mach number. The airframe was an unbanked canard missile configuration with low-aspect-ratio coplanar wing and tail surfaces of triangular plan form. Results regarding the center-of-pressure shift due to angle of attack, center-of-pressure shift due to Mach number, and combined effects of angle of attack and Mach number are provided.
Date: September 2, 1955
Creator: Spahr, J. Richard
System: The UNT Digital Library
Some Effects of Aeroelasticity on the Rolling Effectiveness of a 10-Percent-Scale Model of the Mcdonnell F-101A Airplane Wing at Mach Numbers From 0.5 to 1.2 (open access)

Some Effects of Aeroelasticity on the Rolling Effectiveness of a 10-Percent-Scale Model of the Mcdonnell F-101A Airplane Wing at Mach Numbers From 0.5 to 1.2

Report discussing testing of the effects of aeroelasticity on the rolling effectiveness on a model of a McDonnell F-101A airplane wing. The aeroelastic losses varied based on the Mach number and altitude.
Date: September 2, 1955
Creator: English, Roland D.
System: The UNT Digital Library
Tests of Lifting Surfaces on Conical and Cylindrical Portions of a Body at Subsonic Mach Numbers and at a Mach Number of 1.2 (open access)

Tests of Lifting Surfaces on Conical and Cylindrical Portions of a Body at Subsonic Mach Numbers and at a Mach Number of 1.2

Report presenting testing of low-aspect-ratio triangular-plan-form lifting surfaces located on conical and cylindrical portions of a body have been determined at Mach number 1.2 and several subsonic speeds to determine if the aerodynamic characteristics of these surfaces at supersonic speeds could be improved by locating them in the subsonic conical-flow field. Results regarding lift and drag coefficients and lift-curve slopes are provided.
Date: September 2, 1949
Creator: Osborne, Robert S. & Wright, John B.
System: The UNT Digital Library
An Application of the Rocket-Propelled-Model Technique to the Investigation of Low-Lift Buffeting and the Results of Preliminary Tests (open access)

An Application of the Rocket-Propelled-Model Technique to the Investigation of Low-Lift Buffeting and the Results of Preliminary Tests

"The rocket-propelled-model technique has been applied to the investigation of low-lift buffeting. Results of preliminary tests show that severe buffeting, wing dropping, and normal-force changes occur almost simultaneously near zero lift over a Mach number range near 0.9 on unswept wings 12 percent thick. On unswept wings 7 percent thick, buffeting did not occur; however, mild wing dropping and normal-force changes were experienced" (p. 1).
Date: September 2, 1952
Creator: Mason, Homer P. & Gardner, William N.
System: The UNT Digital Library
A limited analysis of buffeting experienced in flight by a North American F-86A-1 airplane with and without large external fuel tanks (open access)

A limited analysis of buffeting experienced in flight by a North American F-86A-1 airplane with and without large external fuel tanks

Report presenting a limited analysis of data collected during buffeting of a North American F-86A-1 airplane with and without large external fuel tanks installed in order to explore the buffeting characteristics of the different configurations. A two-part analysis was carried out to determine the effect of the tanks on the general buffeting characteristics and to make a detailed study of the electrical and numerical frequency analysis techniques of one run.
Date: September 2, 1955
Creator: Thompson, Jim Rogers; O'Bryan, Thomas C. & Kurbjun, Max C.
System: The UNT Digital Library
Wind-Tunnel Investigation of High-Lift and Stall-Control Devices on a 37 Degree Sweptback Wing of Aspect Ratio 6 at High Reynolds Numbers (open access)

Wind-Tunnel Investigation of High-Lift and Stall-Control Devices on a 37 Degree Sweptback Wing of Aspect Ratio 6 at High Reynolds Numbers

"Results are presented of an investigation in the Langley 19-foot pressure tunnel of the longitudinal characteristics of a semispan model wing having 37 degrees sweepback of the leading edge, an aspect ratio of 6, and NACA 641-212 airfoil section perpendicular to the 27-percent-chord line. Several types of stall-control devices including extensible round-nose leading-edge flaps, a leading-edge slat, and a drooped leading edge were investigated; partial- and full-span trailing-edge split and double slotted flaps were also tested. In addition, various combinations of the aforementioned leading- and trailing-edge flaps were investigated" (p. 1).
Date: September 2, 1948
Creator: Koven, William & Graham, Robert R.
System: The UNT Digital Library
Aerodynamic characteristics at Mach numbers from 0.7 to 1.75 of a four-engine swept-wing airplane configuration as obtained from a rocket-propelled model test (open access)

Aerodynamic characteristics at Mach numbers from 0.7 to 1.75 of a four-engine swept-wing airplane configuration as obtained from a rocket-propelled model test

Report presenting flight testing of a rocket-propelled model of a typical multiengine airplane configuration to obtain data on drag, stability, and nacelle performance. Data were obtained at a variety of Mach numbers, lift coefficients, and subsonic and supersonic speeds. Results regarding airplane performance, nacelle performance, longitudinal characteristics, and lateral characteristics are provided.
Date: September 2, 1955
Creator: Chapman, Rowe, Jr.
System: The UNT Digital Library
Aerodynamic characteristics of a two-blade NACA 10-(3)(08)-03R propeller (open access)

Aerodynamic characteristics of a two-blade NACA 10-(3)(08)-03R propeller

From Introduction: "This paper presents the test data obtained for the NACA 10-(3) (08)-03R propeller blade which was one of the blades tested to determine the effects of shank design."
Date: September 2, 1948
Creator: Evans, Albert J. & Salters, Leland B., Jr.
System: The UNT Digital Library
A transonic wind-tunnel investigation of the effects of nacelle shape and position on the aerodynamic characteristics of two 47 degree sweptback wing-body configurations (open access)

A transonic wind-tunnel investigation of the effects of nacelle shape and position on the aerodynamic characteristics of two 47 degree sweptback wing-body configurations

Report presenting an investigation in the 8-foot transonic tunnel to determine the effect of nacelle shape and position on the aerodynamic characteristics of two wing-body configurations at a range of Mach numbers. Some of the nacelles investigated included underslung and pylon-suspended nacelles located at the 40 percent-semispan station, submerged nacelles, and wing-tip nacelles. Results regarding the drag characteristics, mass-flow characteristics, schileren photographs, lift characteristics, and longitudinal stability characteristics are provided.
Date: September 2, 1952
Creator: Bielat, Ralph P. & Harrison, Daniel E.
System: The UNT Digital Library
A Theory of Unstaggered Airfoil Cascades in Compressible Flow (open access)

A Theory of Unstaggered Airfoil Cascades in Compressible Flow

"By use of the methods of thin airfoil theory, which include effects of compressibility, relations are developed which permit the rapid determination of the pressure distribution over an unstaggered cascade of airfoils of a given profile, and the determination of the profile shape necessary to yield a given pressure distribution for small chord gap ratios. For incompressible flow the results of the theory are compared with available examples obtained by the more exact method of conformal transformation. Although the theory is developed for small chord/gap ratios, these comparisons show that it may be extended to chord/gap ratios of order unity, at least for low speed flows" (p. 1).
Date: September 2, 1947
Creator: Spurr, Robert A. & Allen, H. Julian
System: The UNT Digital Library