Download or read book Lifting surface theory Values of the Damping in Roll and of the Parameter Used in Estimating Aileron Stick Forces written by Robert S. Swanson and published by . This book was released on 1945 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: An investigation was made by lifting-surface theory of a thin elliptic wing of aspect ratio 6 in a steady roll by means of the electromagnetic-analogy method. From the results, aspect-ratio corrections for the damping in roll and aileron hinge moments for a wing in steady roll were obtained that are considerably more accurate than those given by lifting-line theory. First-order effects of compressibility were included in the computations. The results obtained by lifting-surface theory indicate that the damping in roll for a wing of aspect ratio 6 is 13 percent less than that given by lifting-line theory and 5 percent less than that given by lifting-line theory with the edge-velocity correction derived by Robert T. Jones applied. The results are extended to wings of other aspect ratios.
Download or read book Lifting surface theory Values of the Damping in Roll and of the Parameter Used in Estimating Aileron Stick Forces written by Langley Aeronautical Laboratory and published by Hassell Street Press. This book was released on 2021-09-10 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Interaction Between the Spars of Semimonocoque Wings with Cutouts written by Nicholas John Hoff and published by . This book was released on 1947 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stresses in the two spars of a model of a wing having three rectangular cutouts were calculated by the PIBAL method, a modification of Southwell's method of systematic relaxations. The model was built and tested in the Polytechnic Institute of Brooklyn Aeronautical Laboratories and the deflections and strains measured were compared with calculated values. The agreement was found to be satisfactory.
Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1946 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1972 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1955 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Compressive Strength of 24S T Aluminum alloy Flat Panels with Longitudinal Formed Hat section Stiffeners Having a Ratio of Stiffener Thickness to Skin Thickness Equal to 1 00 written by William A. Hickman and published by . This book was released on 1947 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are present for part of a test program on 24S-T aluminum-alloy flat compression panels with hat-section stiffeners. The results show the effect of the relative dimensions of a panel on the buckling stress and average stress at maximum load. Comparative envelope curves are presented to provide some indication of the relative structural efficiencies of hat- and Z-stiffened panels having a ratio of stiffener thicknews to skin thickness of one.
Download or read book Experimental Determination of Effect of Structural Rigidity on Rolling Effectiveness of Some Straight and Swept Wings at Mach Numbers from 0 7 to 1 7 written by H. Kurt Strass and published by . This book was released on 1950 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report of the National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.
Download or read book Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1947 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimation of the Damping in Roll of Wings Through the Normal Flight Range of Lift Coefficient written by Alex Goodman and published by . This book was released on 1949 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of three methods for calculating the damping in roll through the normal flight range of lift coefficient for wing plan forms having various sweep angles, aspect ratios, and taper ratios is presented and comparisons between experimental and calculated results are made.
Download or read book Stability and Control written by Courtland D. Perkins and published by Elsevier. This book was released on 2014-05-12 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight Testing, Volume II: Stability and Control focuses on the development of adequate flight test techniques for the appraisal of stability and control characteristics and flying qualities of airplanes. This book discusses the flying quality requirements, longitudinal motions, and flight determination of stick-fixed neutral points. The determination of aerodynamic parameters from steady maneuvering, desirable control characteristics in steady flight, and various forms of lateral control surfaces are also elaborated. This publication likewise covers the measurement of maximum lift coefficient, emergency anti-spin devices, and concept of the altitude-Mach number flight envelope. This volume is recommended for design, development or research engineers, test pilots, and instrumentation personnel interested in airplane stability and control.
Download or read book Collection and Analysis of Wind tunnel Data on the Characteristics of Isolated Tail Surfaces with and Without End Plates written by WIlliam R. Bates and published by . This book was released on 1947 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aerodynamic characteristics of 19 isolated tail surfaces have been determined by wind-tunnel tests and tests have also been made of rectangular airfoils of various aspect ratios with and without double end plates of various shapes. Thes data from these tests have been collected and analyzed.
Download or read book Impact Strength and Flexural Properties of Laminated Plastics at High and Low Temperatures written by J. J. Lamb and published by . This book was released on 1946 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Izod-impact strengths and flexural properties of several types of plastic laminates, which are either in use or have potential application in aircraft structures and parts, were determined at different temperatures in the range of -70 degrees to 200 degrees F.
Download or read book Collection and Analysis of Hinge moment Data on Control surface Tabs written by Paul E. Purser and published by . This book was released on 1947 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various wind-tunnel data on the hinge-moment characteristics of control-surface tabs have been collected and analyzed. The data, all of which are for plain unbalanced tabs, were obtained from force tests of models in two- and three-dimensional flow and from pressure-distribution measurements on models in two-dimensional flow. Some data that show the effects of Mach number on tab hinge moments for representative conventional and NACA 6-series airfoil sections are presented.
Download or read book Performance Tests of Wire Strain Gages written by William R. Campbell and published by . This book was released on 1946 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of calibrations to determine axial and transverse strain sensitivities are presented for 15 types of single-element, multistrand wire strain gage.
Download or read book Diagonal Tension in Curved Webs written by Paul Kuhn and published by . This book was released on 1947 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: The engineering theory of incomplete diagonal tension in plane webs presented in NACA TN No. 1364 is generalizd in order to make it applicable to curved webs. Comparisons are given between calculated and experimental results for a number of stiffened cylinders subjected to torsional loads. The results indicate that the theory predicts the stresses to about the same accuracy for curved webs as for plane webs. The failing stresses in the stringers in curved webs were predicted conservatively in all cases.
