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Low-Speed Investigation of the Effect of Small Canard Surfaces on the Directional Stability of a Sweptback-Wing Fighter-Airplane Model

Description: Memorandum presenting a low-speed investigation in the free-flight tunnel to determine the effect of small canard surfaces on the directional stability of a fighter-airplane model with an aspect ratio of 3.4 and a 42 degree sweptback wing. The canard surfaces were found to be generally ineffective at angles of attack below 20 degrees.
Date: August 23, 1956
Creator: Paulson, John W. & Boisseau, Peter C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Airborne Simulator Investigation of the Accuracy of an Optical Track Command Missile Guidance System

Description: Memorandum presenting an airborne missile simulator used to represent visually the predicted flight behavior of the Navy XASM-N-7 Bullpup air-to-surface missile, which is guided along the line of sight to the target by bang-bang radio signals controlled by the pilot of the launch airplane. Quantitative response measurements showed that the simulator gave a good representation of the trajectory and control characteristics predicted for the Bullpup missile, and the simulation appeared plausible t… more
Date: November 23, 1956
Creator: Douvillier, Joseph G., Jr.; Foster, John V. & Drinkwater, Fred J., III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of NACA Research on Afterburners for Turbojet Engines

Description: Report presenting a summary of NACA research on afterburners for turbojet engines during the past 5 years. The references present over 1000 afterburner configurations and about 3500 hours of operation. The report covers the following topics: burner-inlet diffusers, fuel-injection systems, flameholders, combustion space, combustion instability, starting and transient performance, effects of diluents, and burner-shell cooling.
Date: March 23, 1956
Creator: Lundin, Bruce T.; Gabriel, David S. & Fleming, William A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Investigation of the Static Longitudinal and Lateral Stability Characteristics of a 1/20-Scale Model of the McDonnell F4H-1 Airplane at Mach Numbers of 1.59, 1.89, and 2.09

Description: Report discussing testing on the drag, longitudinal stability, and lateral stability characteristics of a model of the McDonnell F4H-1 airplane. The minimum drag coefficients, neutral point, horizontal-tail-incidence range, static directional stability, and effective dihedrals are presented.
Date: March 23, 1956
Creator: Carmel, Melvin M. & Gregory, Donald T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A theoretical and experimental study of planing surfaces including effects of cross section and plan form

Description: A summary is given of the background and present status of the pure-planing theory for rectangular flat plates and v-bottom surfaces. The equations reviewed are compared with experiment. In order to extend the range of available planing data, the principal planing characteristics for models having sharp bottom surfaces having constant angles of dead rise of 20 degrees and 40 degrees. Planing data were also obtained for flat-plate surfaces with very slightly rounded chines for which decreased li… more
Date: November 23, 1956
Creator: Shuford, Charles L., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of NACA research on afterburners for turbojet engines

Description: From Summary: "NACA research on afterburners for turbojet engines during the past 5 years is summarized. Although most of this work has been directed toward the development of specific afterburners for various engines rather than toward the accumulation of systematic data, it has, nevertheless, provided a large fund of experimental data and experience in the field. The references cited present over 1000 afterburner configurations and some 3500 hours of operation. In the treatment of the materia… more
Date: March 23, 1956
Creator: Lundin, Bruce T.; Gabriel, David S. & Fleming, William A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Aerodynamic Characteristics in Pitch of a 1/15-Scale Model of the Grumman F11F-1 Airplane at Mach Numbers of 1.41, 1.61, and 2.01, TED No. NACA DE 390

Description: "Tests have been made in the Langley 4- by 4-foot supersonic pressure tunnel at Mach numbers of 1.41, 1.61, and 2.01 to determine the static longitudinal stability and control characteristics of various arrangements of the Grumman F11F-1 airplane. Tests were made of the complete model and various combinations of its component parts and, in addition, the effects of various body modifications, a revised vertical tail, and wing fences on the longitudinal characteristics were determined" (p. 1).
Date: May 23, 1956
Creator: Driver, Cornelius
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation at Mach numbers of 1.41, 1.61, and 1.82 of two variable-geometry inlets having two-dimensional compression surfaces

Description: Report presenting one-tenth-scale models of two inlet configurations of fighter-type aircraft have been tested in the 4- by 4-foot supersonic pressure tunnel. The pressure-recovery and force characteristics of the inlets were determined as a function of mass-flow ratio, angle of inlet compression, angle of attack, and Mach number.
Date: February 23, 1956
Creator: Hasel, Lowell E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Jet effects on base and afterbody pressures of a cylindrical afterbody at transonic speeds

Description: An investigation of the effects of jet nozzle geometry, size of base annulus, and base bleed upon the base and afterbody pressures of a cylindrical afterbody at transonic speeds has been conducted. Sonic and supersonic conical nozzles with jet-to-base diameter ratios from 0.25 to 0.85 were investigated with a cold jet at jet total-pressure ratios up to approximately 8.0 through a Mach number range from 0.6 to 1.25. Base pressure coefficients of about -0.55 were measured for the sonic nozzles at… more
Date: May 23, 1956
Creator: Cubbage, James M., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Correlation of creep-buckling tests with theory

Description: Report presenting the results of short-time creep-buckling and creep-bending tests of 2024-T4 aluminum-alloy columns of slenderness ratio 111 are presented. Tests were performed at 600 degrees Fahrenheit and strain measurements were taken with high-temperature electric-resistance strain gages.
Date: May 23, 1956
Creator: Patel, Sharad A.; Kempner, Joseph; Erickson, Burton & Mobassery, Abol H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-speed investigation of the lateral-control characteristics of a flap-type spoiler and a spoiler-slot deflector on a 30 degree sweptback wing-fuselage model having an aspect ratio of 3, a taper ratio of 0.5, and NACA 65A004 airfoil section

Description: Report presenting a wind-tunnel investigation at low speed in the 300 mph 7- by 10-foot tunnel to determine the effect of deflector projection on the control effectiveness of spoiler-slot-deflectors on a 30 degree sweptback wing-fuselage model equipped with either a 15-percent-chord spoiler or a spoiler-slot-deflector. Results regarding the aerodynamic characteristics, wing longitudinal characteristics, rolling-moment characteristics, and pressure distributions are provided.
Date: August 23, 1956
Creator: Hammond, Alexander D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of external stores on the static longitudinal aerodynamic characteristics of a model of a 45 degree swept-wing fighter airplane at Mach numbers of 1.61 and 2.01

Description: Report presenting an investigation in the 4- by 4-foot supersonic pressure tunnel to determine the effects of various external-store configurations on the longitudinal and lateral aerodynamic characteristics of a model of a 45 degree swept-wing fighter airplane. Results regarding accuracy and remarks on effects of stores are provided.
Date: August 23, 1956
Creator: Foster, Gerald V. & Driver, Cornelius
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-speed measurements of tail contribution to rolling stability derivatives and air-flow angularity at the tail for an x-tail model in steady roll including some effects of wing-tip stores

Description: Report presenting an investigation in the stability tunnel to determine the combined effect of wing and wing-body interference on the contribution of an x-tail configuration to the low-speed rolling-stability derivatives of an airplane model with an unswept midwing and to indicate the change due to roll in the local flow angularity at a number of stations across the tail surfaces for one-half of the x-tail. Results regarding the static longitudinal characteristics, steady-roll characteristics, … more
Date: November 23, 1956
Creator: Riley, Donald R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Study by Means of a Dynamic-Model Investigation of the Use of Canard Surfaces as an Aid in Recovering From Spins and as a Means for Preventing Directional Divergence Near the Stall

Description: Memorandum presenting an aircraft modification involving the incorporation of small canard surfaces into the design, which is meant to compensate for eliminating ailerons. Results of testing in the 20-foot free-spinning tunnel of dynamic models of two sweptback-wing fighter airplanes showed that canard surfaces were very effective in aiding termination of spins of these models. A discussion of the spin tests, catapult and force tests, and effect of jet-engine angular momentum is provided.
Date: May 23, 1956
Creator: Klinar, Walter J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of leading-edge droop on the aerodynamic and loading characteristics of a 4-percent-thick unswept-wing-fuselage combination at transonic speeds

Description: Report presenting an investigation in the 16-foot transonic tunnel to determine the effects of leading-edge droop on the aerodynamic and loading characteristics of an unswept wing with a taper ratio of 0.5, an aspect ratio of 4, and NACA 65A004 airfoil sections parallel to the plane of symmetry. The results indicate that, below a Mach number of 0.94, leading-edge droop delayed the onset of leading-edge separation and moved the main wing-compression shock rearward.
Date: May 23, 1956
Creator: Schmeer, James W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oscillating hinge moments and flutter characteristics of a flap-type control surface on a 4-percent-thick unswept wing with low aspect ratio at transonic speeds

Description: Report presenting free-oscillation tests to determine the dynamic hinge-moment characteristics of a trailing-edge flap-type control surface on a 4-percent-thick unswept wing with low aspect ratio. Tests were made over a range of Mach numbers, reduced frequencies, and low test speeds. Results regarding the effects of wing motion, damping moment and flutter characteristics, spring moments, and theoretical results are provided.
Date: February 23, 1956
Creator: Thompson, Robert F. & Moseley, William C., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Temperature Drops Through Liquid-Cooled Turbine Blades With Various Cooling-Passage Geometries

Description: Memorandum presenting the effects of variations in cooling-passage geometry on the relations between heat flow and temperature drops within liquid-cooled turbine blades. Wall thicknesses, blade section depths, and cooling-passage sizes, shapes, and spacings were varied experimentally on a simple electric analog on which are simulated rectangular sections of blades. Results are presented in terms of temperature differences between the cooled-surface temperature and average heated-surface tempera… more
Date: March 23, 1956
Creator: Bartoo, Edward R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Longitudinal characteristics of an unswept-wing fighter-type model with external stores at a Mach number of 1.82 and some effects of horizontal-tail and yaw-damper-vane deflection on the sideslip derivatives

Description: Report presenting an investigation in the 4- by 4-foot supersonic pressure tunnel to determine the effects of the addition of one body-mounted external store, tip tanks, and several tip-mounted missile configurations on the aerodynamic characteristics in pitch of a fighter model with a low-aspect-ratio, unswept wing at Mach number 1.82. Many of the tip-mounted store configurations were found to produce increased lift-curve slopes and drag increments which decreased with increasing lift coeffici… more
Date: August 23, 1956
Creator: Robinson, Ross B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-speed pressure-distribution investigation of a thin-delta-wing-fuselage model with double slotted flap, extended double slotted flap, and canard

Description: Report presenting an investigation in the 300 mph 7- by 10-foot tunnel to determine the chordwise and spanwise load distribution on a thin 60 degree delta-wing-fuselage model equipped with double slotted and extended double slotted flaps. The effects of a canard on the loads of the wing with the extended double slotted flaps are also determined.
Date: November 23, 1956
Creator: Croom, Delwin R. & Huffman, Jarrett K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Variation With Wing Aspect Ratio of Flap Effectiveness on Thin Rectangular Wings at Transonic Speeds

Description: Report presenting an investigation in the high-speed tunnel using the transonic bump technique in order to study the effectiveness of full-span flap-type controls on 31 unswept rectangular wings. Results regarding lift-curve slope, flap-effectiveness parameter, and the agreement between predicted and experimental results are also provided.
Date: August 23, 1956
Creator: Lowry, John G. & Taylor, Robert T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation of Factors Affecting Pilots' Ability to Utilize a Radarscope Display of Steering Information

Description: Report presenting results of a flight investigation of a radar fire-control system installed in a fighter airplane. Some of the factors included in the radar evaluation are "noise" of the steering dot, lack of target-attitude information, and sensitivity and linearity of the display.
Date: November 23, 1956
Creator: Faber, Stanley; Cheatham, Donald C. & Champine, Robert A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Distribution of Uranium at Low Acid : Low Uranium Concentrations into 4-1/2 Percent TBP-AMSCO

Description: Report wherein acid free uranyl nitrate hexahydrate was distributed into 4-1/2 percent TBP-Amsco 125-90W and combined with various concentrations of acid in order to study the distribution of uranium and hydrolysis effects.
Date: August 23, 1956
Creator: Andelin, Robert L.; Anderson, Edward L. & McVey, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[News Script: Greenway Park hearing]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a proposed gravel mine near Greenway Park, an African American neighborhood. The "Greenway Citizens League" is against the project.
Date: August 23, 1956
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
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