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Author : Charles Howard Armbruster
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (522 download)
Download or read book A Method for Computing Forward Flight Performance of a Helicopter written by Charles Howard Armbruster and published by . This book was released on 1952 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. Raymond Dietz
Publisher :
ISBN 13 :
Total Pages : 57 pages
Book Rating : 4.:/5 (227 download)
Download or read book Simplified Aircraft Performance Methods: Power Required for Single and Tandem Rotor Helicopters in Hover and Forward Flight written by C. Raymond Dietz and published by . This book was released on 1973 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents a combination graphic and computing method for quick determination of shaft horsepower required for helicopters in hover and forward flight. Sets of equations were developed for computing power required. These equations are based upon theory and test data and show good agreement with published power required data on many currently operating helicopters. The equations have also been programmed for digital computation thereby making possible detailed studies of helicopter performance and the effects of parametric variations. (Author).
Author : Alfred Gessow
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (317 download)
Download or read book A Note on the Calculation of Helicopter Performance at High Tip-speed Ratios written by Alfred Gessow and published by . This book was released on 1959 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ralph J. Harris
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (1 download)
Download or read book Typical Helicopter Performance Calculation written by Ralph J. Harris and published by . This book was released on 1952 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wieslaw Zenon Stepniewski
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.X/5 (1 download)
Download or read book Introduction to Helicopter Aerodynamics written by Wieslaw Zenon Stepniewski and published by . This book was released on 1950 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elbridge Z. Stowell
Publisher :
ISBN 13 :
Total Pages : 748 pages
Book Rating : 4.F/5 ( download)
Download or read book An Evalution of Some Approximate Methods of Computing Landing Stresses in Aircraft written by Elbridge Z. Stowell and published by . This book was released on 1948 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: The landing of a simplified airplane structure, consisting of a uniform beam for the wings, a concentrated mass for the fuselage, and a linear spring for the landing gear, is analyzed exactly and is compared with several approximate solutions. The approximate solutions which neglect elasticity in the determination of landing-gear reaction but consider elasticity in computations of stresses give results of good accuracy and indicate that drop tests in which rigid masses are used may be a satisfactory approach to the landing problem.
Author : Robert R. Lynn
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.0/5 ( download)
Download or read book Helicopter Aerodynamics and Related Flight Test Techniques written by Robert R. Lynn and published by . This book was released on 1952 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Donaldson Berry
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (256 download)
Download or read book A Method of Computing the Aerodynamic Interactions of a Rotor-fuselage Configuration in Forward Flight written by John Donaldson Berry and published by . This book was released on 1990 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard C. Dingeldein
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (31 download)
Download or read book Considerations of Methods of Improving Helicopter Efficiency written by Richard C. Dingeldein and published by . This book was released on 1961 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Konstantin Volkov
Publisher : BoD – Books on Demand
ISBN 13 : 9535138073
Total Pages : 242 pages
Book Rating : 4.5/5 (351 download)
Download or read book Flight Physics written by Konstantin Volkov and published by BoD – Books on Demand. This book was released on 2018-02-14 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the synthesis of the fundamental disciplines and practical applications involved in the investigation, description, and analysis of aircraft flight including applied aerodynamics, aircraft propulsion, flight performance, stability, and control. The book covers the aerodynamic models that describe the forces and moments on maneuvering aircraft and provides an overview of the concepts and methods used in flight dynamics. Computational methods are widely used by the practicing aerodynamicist, and the book covers computational fluid dynamics techniques used to improve understanding of the physical models that underlie computational methods.
Author :
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (317 download)
Download or read book Optimization Methods Applied to the Aerodynamic Design of Helicopter Rotor Blades written by and published by . This book was released on 1987 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edmund H. Smith
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (222 download)
Download or read book An Empirical Prediction Method for Helicopter Performance in Low Speed Level Flight and in Vertical and Forward Flight Climbs written by Edmund H. Smith and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Welko E. Gasich
Publisher :
ISBN 13 :
Total Pages : 606 pages
Book Rating : 4.F/5 ( download)
Download or read book Experimental Verification of Two Methods for Computing the Take-off Ground Run of Propeller-driven Aircraft written by Welko E. Gasich and published by . This book was released on 1947 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison is presented between the measured take-off ground run of an airplane equipped with seven different propeller-engine gear-ratio combinations and the computed distances by two different methods.
Author : Antonio Filippone
Publisher : Elsevier
ISBN 13 : 0080461034
Total Pages : 594 pages
Book Rating : 4.0/5 (84 download)
Download or read book Flight Performance of Fixed and Rotary Wing Aircraft written by Antonio Filippone and published by Elsevier. This book was released on 2006-05-10 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculation and optimisation of flight performance is required to design or select new aircraft, efficiently operate existing aircraft, and upgrade aircraft. It provides critical data for aircraft certification, accident investigation, fleet management, flight regulations and safety. This book presents an unrivalled range of advanced flight performance models for both transport and military aircraft, including the unconventional ends of the envelopes. Topics covered include the numerical solution of supersonic acceleration, transient roll, optimal climb of propeller aircraft, propeller performance, long-range flight with en-route stop, fuel planning, zero-gravity flight in the atmosphere, VSTOL operations, ski jump from aircraft carrier, optimal flight paths at subsonic and supersonic speed, range-payload analysis of fixed- and rotary wing aircraft, performance of tandem helicopters, lower-bound noise estimation, sonic boom, and more.This book will be a valuable text for undergraduate and post-graduate level students of aerospace engineering. It will also be an essential reference and resource for practicing aircraft engineers, aircraft operations managers and organizations handling air traffic control, flight and flying regulations, standards, safety, environment, and the complex financial aspects of flying aircraft. - Unique coverage of fixed and rotary wing aircraft in a unified manner, including optimisation, emissions control and regulation. - Ideal for students, aeronautical engineering capstone projects, and for widespread professional reference in the aerospace industry. - Comprehensive coverage of computer-based solution of aerospace engineering problems; the critical analysis of performance data; and case studies from real world engineering experience. - Supported by end of chapter exercises
Author : W. Z. Stepniewski
Publisher : Courier Corporation
ISBN 13 : 0486318516
Total Pages : 640 pages
Book Rating : 4.4/5 (863 download)
Download or read book Rotary-Wing Aerodynamics written by W. Z. Stepniewski and published by Courier Corporation. This book was released on 2013-04-22 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: DIVClear, concise text covers aerodynamic phenomena of the rotor and offers guidelines for helicopter performance evaluation. Originally prepared for NASA. Prefaces. New Indexes. 10 black-and-white photos. 537 figures. /div
Author : Andrew M. Wissink
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (317 download)
Download or read book Efficient Helicopter Aerodynamic and Aeroacoustic Predictions on Parallel Computers written by Andrew M. Wissink and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "This paper presents parallel implementations of two codes used in a combined CFD/Kirchhoff methodology to predict the aerodynamics and aeroacoustics properties of helicopters. The rotorcraft Navier-Stokes code, TURNS, computes the aerodynamic flowfield near the helicopter blades and the Kirchhoff acoustics code computes the noise in the far field, using the TURNS solution as input. The overall parallel strategy adds MPI message passing calls to the existing serial codes to allow for communication between processors. As a result, the total code modifications required for parallel execution are relatively small. The biggest bottleneck in running the TURNS code in parallel comes from the LU-SGS algorithm that solves the implicit system of equations. We use a new hybrid domain decomposition implementation of LU-SGS to obtain good parallel performance on the SP-2. TURNS demonstrates excellent parallel speedups for quasi-steady and unsteady three-dimensional calculations of a helicopter blade in forward flight. The execution rate attained by the code on 114 processors is six times faster than the same cases run on one processor of the Cray C-90. The parallel Kirchhoff code also shows excellent parallel speedups and fast execution rates. As a performance demonstration, unsteady acoustic pressures are computed at 1886 far-field observer locations for a sample acoustics problem. The calculation requires over two hundred hours of CPU time on one C-90 processor but takes only a few hours on 80 processors of the SP2. The resultant far-field acoustic field is analyzed with state-of-the-art audio and video rendering of the propagating acoustic signals."
Author : Wayne Johnson
Publisher : Cambridge University Press
ISBN 13 : 1107355281
Total Pages : 949 pages
Book Rating : 4.1/5 (73 download)
Download or read book Rotorcraft Aeromechanics written by Wayne Johnson and published by Cambridge University Press. This book was released on 2013-04-29 with total page 949 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rotorcraft is a class of aircraft that uses large-diameter rotating wings to accomplish efficient vertical take-off and landing. The class encompasses helicopters of numerous configurations (single main rotor and tail rotor, tandem rotors, coaxial rotors), tilting proprotor aircraft, compound helicopters, and many other innovative configuration concepts. Aeromechanics covers much of what the rotorcraft engineer needs: performance, loads, vibration, stability, flight dynamics, and noise. These topics include many of the key performance attributes and the often-encountered problems in rotorcraft designs. This comprehensive book presents, in depth, what engineers need to know about modelling rotorcraft aeromechanics. The focus is on analysis, and calculated results are presented to illustrate analysis characteristics and rotor behaviour. The first third of the book is an introduction to rotorcraft aerodynamics, blade motion, and performance. The remainder of the book covers advanced topics in rotary wing aerodynamics and dynamics.
