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Effects of Some Present-Day Airplane Design Trends on Requirements for Lateral Stability

Description: Note presenting computations made to determine the effects of some airplane design trends on the fin area and the dihedral angle required for lateral stability. The specific factors studied were wing loading, moments of inertia in roll and yaw, wing chord, and tail length. The results of the computations are presented in the form of diagrams of variations of fin area with dihedral angle for neutral stability.
Date: June 1941
Creator: Bamber, Millard J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of Brine in a Kansas Field for Secondary Recovery of Oil

Description: Report issued by the U.S. Bureau of Mines on the use of oil field brine in secondary recovery methods. Characteristics of the brine, and methods used in recovery processes are presented. This report includes tables, graphs, maps, and illustrations.
Date: June 1941
Creator: Wilhelm, C. J.; Taylor, Sam S.; Holliman, W. C. & Owens, E. O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemical Properties of Uranium Hexafluoride, UF6

Description: Uranium hexafluoride has the distinction of being the only stable gaseous compound of uranium known up to the present moment. Because of this property it is the only compound that can be used for processes of isotope separation, such as diffusion, thermal diffusion, centrifuge separation, distillation, and other of a similar nature. Here is a short description of the properties of UF{sub 6} and is intended for a reader interested only casually in this compound. UF{sub 6} is a very reactive comp… more
Date: June 25, 1941
Creator: Grosse, Aristid V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-tunnel investigation of control-surface characteristics 1: effect of gap on the aerodynamic characteristics of an NACA 0009 airfoil with a 30-percent-chord plain flap

Description: From Summary: "Tests have been made to determine the effect of a gap at the flap nose upon the aerodynamic section characteristics of an NACA 0009 airfoil with a plain flap and tab. The results are presented in the form of airfoil and flap section characteristics for several flap deflections, tab deflections, and for four sizes of gap."
Date: June 1941
Creator: Sears, Richard I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-tunnel investigation of an NACA 23012 airfoil with a 30 percent chord Maxwell slate and with trailing-edge flaps

Description: Report presenting an investigation in the 7- by 10-foot wind tunnel of an NACA 23012 airfoil with a 30 percent-chord Maxwell leading-edge slat and a slotted and a split flap. The main purpose was to determine the optimum slot cap of the Maxwell slat for, and the aerodynamic section characteristics of, the airfoil with several deflections for both types of flaps. Curves of lift, drag, and pitching-moment characteristics for optimum arrangements are provided.
Date: June 1941
Creator: Lowry, John G. & McKee, John W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation of a Plain and a Slot-Lip Aileron on a Wing With a Full-Span Flap Consisting of an Inboard Fowler and an Outboard Slotted Flap

Description: Report presenting an investigation of a slot-lip aileron and a plain aileron, singly and in combination, on an NACA 23012 wing with a full-span flap. The characteristics of these lateral-control devices were essentially the same as those of similar devices on the wing with full-span NACA slotted flaps as tested in a previous investigation.
Date: June 1941
Creator: Rogallo, F. M. & Schuldenfrei, Marvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The theoretical lateral motions of an automatically controlled airplane subjected to a yawing moment disturbance

Description: Report presenting an investigation of the lateral motion resulting from a disturbance of the type produced by asymmetric loss of thrust for a hypothetical average airplane equipped with an automatic pilot. Plots of the resultant motion and various modes that constitute the motion are presented for fixed controls and for various amounts of autopilot.
Date: June 1941
Creator: Imlay, Frederick H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cooling Effects of an Airplane Equipped With an NACA Cowling and a Wing-Duct Cooling System

Description: Report presenting cooling tests of a Northrop A-17A attack airplane equipped with a conventional NACA cowling and then with a wing-duct cooling system. Ground cooling for the wing-duct system without cowl flap was better than for the cowling with flap, but was improved by installing a cowl flap. Satisfactory temperatures were maintained in climb and high-speed flight, but a greater quantity of cooling air was needed for the wing-duct system.
Date: June 1941
Creator: Turner, L. I., Jr.; Bierman, David & Boothby, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Stability and Control Tests in the NACA Free-Flight Wind Tunnel and Correlation With Full-Scale Flight Tests

Description: Note presenting a study of stability and control of airplanes by means of dynamic scale models in the 12-foot free-flight wind tunnel. Tests of a scale model of the F-36A airplane were used to develop the testing technique and to afford a comparison of tests of a model in the tunnel with flight tests of the corresponding airplane. Results regarding longitudinal stability and control and lateral stability and control are provided.
Date: June 1941
Creator: Shortal, Joseph A. & Osterhout, Clayton J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effect of Methods of Testing on the Ultimate Loads Supported by Stiffened Flat Sheet Panels Under Edge Compression

Description: Note presenting testing of two series of stiffened flat sheet specimens tested under edge compression using various end conditions: round ends, flat ends, and continuous panels. The specimens consisted of aluminum-alloy flat sheet stiffened by three hat-shaped extruded aluminum-alloy stiffeners. The results indicated that the length of the specimen has an insignificant effect on the ultimate compressive load.
Date: June 1941
Creator: Holt, Marshall
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Power-off wind-tunnel tests of the 1/8-scale model of the Brewster F2A airplane

Description: "At the request of the Bureau of Aeronautics, Navy Department, tests were made in the 7- by 10-foot wind tunnel of the 1/8-scale model of the Brewster F2A airplane. The object of the tests was to determine the power-off static lateral and longitudinal stability and control of the complete model" (p. 1).
Date: June 1941
Creator: Lowry, John G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An analytical study of wing and tail loads associated with an elevator deflection

Description: From Introduction: "The present paper covers step 1 of the outlined investigation, includes methods of computing the variation of wing and tail loads, and gives numerical results of the application of the theory to the BT-9B airplane. Finally, theoretical formulas are developed and charts are given for computing the maximum increments of wing load, the down-tail load, and the up-tail load following a given elevator displacement."
Date: June 1941
Creator: Pearson, H. A. & Garvin, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Flight Investigation of the Thermal Properties of an Exhaust Heated Wing De-Icing System on a Lockheed 12-A Airplane

Description: "The thermal properties are presented for the exhaust heated wing de-icing system of a Lockheed 12-A airplane which has successfully prevented a wing icing in 25 hours of flying in various icing conditions. The quantities of heat supplied for de-icing of the wings under various conditions were measured and are presented. The distribution of temperatures above the ambient air temperature for the wing surface under various operating conditions are given" (p. 1).
Date: June 1941
Creator: Rodert, Lewis A. & Clousing, Lawrence A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Esquire Magazine Varga Girl Illustration: Bouquet for a Bride]

Description: A spread from Esquire magazine featuring an illustration of a Varga Girl styled as a bride in a wedding dress, veil, and stockings throwing her shoe paired with a two stanza verse "Bouquet for a Bride" by Phil Stack. On the following side of the spread is a reproduction offset lithograph print of men's fashion illustrations by William Pachner featuring hats accompanied by descriptive text for the June edition 1943.
Date: June 1941
Creator: Vargas, Alberto; Stack, Phil & Pachner, William
Item Type: Refine your search to only Clipping
Partner: UNT Libraries Special Collections
open access

[Esquire Magazine Varga Girl Illustration: Curves are Trumps ]

Description: A spread from Esquire magazine featuring an illustration of a redhead Varga Girl flying styled to a card and gambling theme paired with a two stanza verse "Curves are Trumps" by Phil Stack. On the following side of the spread is a reproduction offset lithograph print of sketches and photographs celebrating fathers day clipped from the June edition of Esquire Magazine in 1943.
Date: June 1941
Creator: Vargas, Alberto; Stack, Phil & De Vos, Leon
Item Type: Refine your search to only Clipping
Partner: UNT Libraries Special Collections
open access

A Critical Analysis of the Harmonic Idiom of Songs of Claude Debussy and its Influence on Compositions of Charles Loeffler and John Alden Carpenter

Description: The main purpose of this study will be to analyze the impressionistic style and techniques of Debussy, how the idiom came to be, and the influence of this particular idiom on two American composers. For thorough understanding, the poetic and artistic backgrounds of impressionism must be brought out; the biography of the man who originated the idiom, as well as his aesthetic theories, must be briefly covered. More objectively, from biographies and various other studies the techniques peculiarly … more
Date: June 1941
Creator: Connor, Patricia (Patricia Josephine)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Critical View of the Rhetorical Idiom in Modern Music with Emphasis on the Development of the Contemporary Art-Song

Description: This study was made in conjunction with a recital of contemporary American song literature. It it designed to show how the modern composer has taken the tools of words and music and utilized them in creating a valid art-form. I believe it is the first study of its kind that has been made. The song literature which formed the basis of the study has been attested to as valid data by Otto Luening, prominent modern composer and pedagogue and twice winner of the Guggenheim Fellowship in composition,… more
Date: June 1941
Creator: Chamberlain, Richard (Richard Harry)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

75-mm howitzer materiel.

Description: This is a World War II-era technical manual for the 75mm Howitzer. It contains information on use, maintenance, assembly, and other aspects of this weapon.
Date: June 21, 1941
Creator: United States. Army. Ordnance Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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