Download or read book Theoretical Loading at Supersonic Speeds of Flat Swept back Wings with Interacting Trailing and Leading Edges written by Doris Cohen and published by . This book was released on 1949 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: By the method of superposition of conical flows, the load distribution is calculated for regions of a long swept-back wing behind the points at which the Mach lines from the trailing-edge apex intersect the leading edge. It is found that a good approximation on the load can be obtained by the application of a fairly simple correction factor to the two-dimensional subsonic distribution. The similarity of two-dimensional flow is used to derive expressions for the loss of lift behind the Mach lines from the tips of the wing.

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 1955 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Fretting Corrosion by Microscopic Observation written by Douglas Godfrey and published by . This book was released on 1950 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fretting corrosion was concluded to be caused by the removal of finely divided and apparently virgin material due to inherent forces and that its primary reaction is independent of of vibratory motion or high sliding speeds. Fretting corrosion occurred to clean nonmetals and metals readily and glass microscope slides and steel balls provided an excellent method for visual studies.

Download or read book Report written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1953 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hovering and Low speed Performance and Control Characteristics of an Aerodynamic servocontrolled Helicopter Rotor System as Determined on the Langley Helicopter Tower written by Paul J. Carpenter and published by . This book was released on 1950 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rotor system investigated is a servocontrol type with blades fastened rigidly at the hub and twisted outboard by auxiliary airfoils called flaps to obtain pitch control.

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 1950 with total page 996 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 Correlation of Physical Properties with Molecular Structure for Some Dicyclic Hydrocarbons Having High Thermal energy Release Per Unit Volume written by Alexander Mendelson and published by . This book was released on 1950 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of the Effects of Boundary layer Control on the Power off Landing Performance Characteristics of a Liaison Type of Airplane written by Elmer A. Horton and published by . This book was released on 1950 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the effects of boundary-layer control on the landing performance characteristics of a liaison type of airplane having a payload of 1500 pounds and a flight duration of 5 hours. The aspect ratio was varied from 5 to 15, the wing span from 30 to 100 feet, and the brake horsepower from 300 to 1200. The use of boundary-layer control caused reduction in total landing distance (25 to 40 percent), ground-run distance, gliding speed, and stalling speed whereas sinking speed was increased only slightly.

Download or read book Hydrodynamic Impact of a System with a Single Elastic Mode written by Albert A. Schy and published by . This book was released on 1952 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Linearized Supersonic Axially Symmetric Flow about Open nosed Bodies Obtained by Use of Stream Function written by Franklin Moore and published by . This book was released on 1950 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: First-order relations were obtained for attenuation of shock and flow deflection outward along the shock. These relations probably conform closely to physical fact, provided the entrance slope is small. These relations contain an error, but become exact as the radial coordinate approaches inifinity. The error is thus probably of the second order over the entire shock front.

Download or read book Bibliography of Technical Reports written by and published by . This book was released on 1950 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical and Corrosion Tests of Spot welded Aluminum Alloys written by Fred M. Reinhart and published by . This book was released on 1951 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion behaviro of spot-welded aluminum-alloy (alclad 24S-T3, 24S-T3, alclade XB75S-T6, XB75S-T6, and R-301-T6) panels of varying weld quality was determined. Tidewater and weather exposure tests were made and the results were evaluated largely in terms of distribution of corrosion products and effects on weld strength. Metallographic examinations of several of the alloys were also made to determine the extent and type of corrosion attack associated with various welding and exposure conditions.

Download or read book Charts for Estimating Rotor blade Flapping Motion of High performance Helicopters written by Robert J. Tapscott and published by . This book was released on 1956 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretically derived charts showing steady-state and first- and second-harmonic flapping coefficients are presented for helicopter rotors having hinged rectangular blades with a linear twist of 0, -8, and -16 degrees. The charts, showing the rotor flapping coefficients for combinations of inflow ratio and blade pitch angle, are presented for tip-speed ratios ranging from 0.05 to 0.50.

Download or read book Wing Theory written by A. Robinson and published by Cambridge University Press. This book was released on 2013-09-12 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1956 as part of the Cambridge Aeronautical Series, this book addresses the vital science of wing theory. Robinson and Laurmann record the historic developments in wing theory, including the work of Joukowski and Bernoulli, and discuss developments in supersonic flow and unsteady aerofoil theory. This book will be of value to anyone with an interest in the history of the science of flight.

Download or read book Report written by and published by . This book was released on 1945 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Strengths of Aircraft Materials written by Horace John Grover and published by . This book was released on 1951 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents of axial-load fatigue tests on notched specimens of 24S-T3 and 75S-T6 aluminum alloys and normalized SAE 4130 steel with stress-concentration factors of 2.0 (central-circular hole, symmetrical edge notches, and fillets) and 4.0 (symmetrical edge notches and fillets). Fatigue tests were run at several levels of nominal mean stress. Results are compared with previous data for unnotched specimens.