Autogiros, Helicopters, Cyclogiros and Gyroplanes
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Over Thirty Years After the Wright Brothers
ver thirty years after the Wright Brothers absolutely right in terms of a so-called “pure” helicop- attained powered, heavier-than-air, fixed-wing ter. However, the quest for speed in rotary-wing flight Oflight in the United States, Germany astounded drove designers to consider another option: the com- the world in 1936 with demonstrations of the vertical pound helicopter. flight capabilities of the side-by-side rotor Focke Fw 61, The definition of a “compound helicopter” is open to which eclipsed all previous attempts at controlled verti- debate (see sidebar). Although many contend that aug- cal flight. However, even its overall performance was mented forward propulsion is all that is necessary to modest, particularly with regards to forward speed. Even place a helicopter in the “compound” category, others after Igor Sikorsky perfected the now-classic configura- insist that it need only possess some form of augment- tion of a large single main rotor and a smaller anti- ed lift, or that it must have both. Focusing on what torque tail rotor a few years later, speed was still limited could be called “propulsive compounds,” the following in comparison to that of the helicopter’s fixed-wing pages provide a broad overview of the different helicop- brethren. Although Sikorsky’s basic design withstood ters that have been flown over the years with some sort the test of time and became the dominant helicopter of auxiliary propulsion unit: one or more propellers or configuration worldwide (approximately 95% today), jet engines. This survey also gives a brief look at the all helicopters currently in service suffer from one pri- ways in which different manufacturers have chosen to mary limitation: the inability to achieve forward speeds approach the problem of increased forward speed while much greater than 200 kt (230 mph). -
Aircraft Manufacturers Partie 4 — Constructeurs D’Aéronefs Parte 4 — Fabricantes De Aeronaves Часть 4
4-1 PART 4 — AIRCRAFT MANUFACTURERS PARTIE 4 — CONSTRUCTEURS D’AÉRONEFS PARTE 4 — FABRICANTES DE AERONAVES ЧАСТЬ 4. ИЗГОТОВИТЕЛИ ВОЗДУШНЫХ СУДОВ COMMON NAME COMMON NAME NOM COURANT NOM COURANT NOMBRE COMERCIAL NOMBRE COMERCIAL CORRIENTE MANUFACTURER FULL NAME CORRIENTE MANUFACTURER FULL NAME ШИРОКО NOM COMPLET DU CONSTRUCTEUR ШИРОКО NOM COMPLET DU CONSTRUCTEUR РАСПРОСТРАНЕННОЕ FABRICANTE NOMBRE COMPLETO РАСПРОСТРАНЕННОЕ FABRICANTE NOMBRE COMPLETO НАИМЕНОВАНИЕ ПОЛНОЕ НАИМЕНОВАНИЕ ИЗГОТОВИТЕЛЯ НАИМЕНОВАНИЕ ПОЛНОЕ НАИМЕНОВАНИЕ ИЗГОТОВИТЕЛЯ A (any manufacturer) (USED FOR GENERIC AIRCRAFT TYPES) AERO ELI AERO ELI SERVIZI (ITALY) AERO GARE AERO GARE (UNITED STATES) 3 AERO ITBA INSTITUTO TECNOLÓGICO DE BUENOS AIRES / PROYECTO PETREL SA (ARGENTINA) 328 SUPPORT SERVICES 328 SUPPORT SERVICES GMBH (GERMANY) AERO JAEN AERONAUTICA DE JAEN (SPAIN) AERO KUHLMANN AERO KUHLMANN (FRANCE) 3XTRIM ZAKLADY LOTNICZE 3XTRIM SP Z OO (POLAND) AERO MERCANTIL AERO MERCANTIL SA (COLOMBIA) A AERO MIRAGE AERO MIRAGE INC (UNITED STATES) AERO MOD AERO MOD GENERAL (UNITED STATES) A-41 CONG TY SU'A CHU'A MAY BAY A-41 (VIETNAM) AERO SERVICES AÉRO SERVICES GUÉPARD (FRANCE) AAC AAC AMPHIBIAM AIRPLANES OF CANADA (CANADA) AERO SPACELINES AERO SPACELINES INC (UNITED STATES) AAK AUSTRALIAN AIRCRAFT KITS PTY LTD (AUSTRALIA) AEROALCOOL AEROÁLCOOL TECNOLOGIA LTDA (BRAZIL) AAMSA AERONAUTICA AGRICOLA MEXICANA SA (MEXICO) AEROANDINA AEROANDINA SA (COLOMBIA) AASI ADVANCED AERODYNAMICS AND STRUCTURES INC AERO-ASTRA AVIATSIONNYI NAUCHNO-TEKHNICHESKIY TSENTR (UNITED STATES) AERO-ASTRA -
Autogyro C-30 Fuselage Finite Element Model Analysis
BACHELOR'S THESIS Degree in Aerospace Engineering Autogyro C-30 Fuselage Finite Element Model Analysis Enrique Labiano Laserna Supervisor Jos´e D´ıaz Alvarez´ February 2019 Abstract The main objective of this paper is to design and analyze the autogyro C-30 fuse- lage structure. The autogyro, considered as a hybrid between an airplane and a helicopter, is one the most important milestone in aircraft aviation. It was invented by Juan De la Cierva and became the first rotary wing aircraft that achieved suc- cess. In fact, this kind of rotorcraft will have a lot of influence on how the helicopter operates nowadays. The project will be divided into several parts. Firstly, all the information and draw- ings of the fuselage structure will be gathered and analyzed. After that, the fuselage structure will be modeled in a finite element software, called Abaqus. Secondly, all parts that composed the autogyro will be determined and their weights will be esti- mated taking into account the MTOW of the aircraft. According to the regulations established in the British Civil Airworthiness Requirements (BCAR), loads will be introduced in the model simulating a symmetric pull-up maneuver. The scope of the study will involve a stress analysis and finally, a modal analysis in order to determine the natural frequencies of the structure. Finally, a socio-economic impact of designing an autogyro will be presented together with a rough budget of manufacturing the fuselage structure of the autogyro C-30. Keywords: Autogyro C-30, fuselage structure, FEM analysis, modal analysis iii Acknowledgements First of all, I would like to thank my parents and my brothers who have helped me from the beginning. -
The Evolution of the British Rotorcraft Industry 1842-2012
Journal of Aeronautical History Paper No. 2012/07 THE EVOLUTION OF THE BRITISH ROTORCRAFT INDUSTRY 1842-2012 Eur Ing David Gibbings C Eng., FRAeS Based on a paper originally presented to the European Rotorcraft Forum in Hamburg, September 2009. ABSTRACT This paper relates the way in which rotorcraft developed in Britain, leading to the growth of an effective design and manufacturing industry. The narrative is divided into five sections, each of which represents defining phases in UK based activity leading towards the development of the modern helicopter: 1. The Pre-Flight Period (1842-1903) This section covers British activity during the period when the objective was simply to demonstrate powered flight by any means, and where rotors might be considered to be a way of achieving this. 2. The Early Helicopter Period (1903-1926). Early attempts to build helicopters, including the work of Louise Brennan, which achieved limited success with a rotor driven by a propellers mounted on the blade tips. 3. The Pre-War Years (1926-1939) This section gives emphasis to development of the gyroplane and in particular the work of Juan de la Cierva, with his UK-based company to develop his 'Autogiro', from which the understanding of rotor dynamics and control was established, and which was to lead to the realisation of the helicopter by others. Although UK rotary wing development was driven by the gyroplane, the work carried out by the Weir Company, which was to lead to the first successful British helicopter is discussed. 4. The War Years. (1939-1945) Rotary wing activities in the UK were very limited during World War 2, restricted to the work carried out by Raoul Hafner with the Rotachute/ Rotabuggy programme and the use of autogiros for the calibration of radar. -
Envisioning the Aeroplane: Comparing the Spectrum Of
ENVISIONING THE AEROPLANE: COMPARING THE SPECTRUM OF RESPONSES IN THE AMERICAN AND BRITISH ARMIES TO A TECHNOLOGY WITHOUT PRECEDENT, 1903-1939 A Dissertation by LORI ANN HENNING Submitted to the Office of the Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Jonathan Coopersmith Committee Members, Brian Linn Chester Dunning Adam Seipp Peter Hugill Head of Department, David Vaught May 2015 Major Subject: History Copyright 2015 Lori Ann Henning ABSTRACT This work examines the unique threat and opportunity posed by aviation to the horse cavalry in the 1900s through the 1930s and how cavalrymen responded. During that period, the American and British cavalries encountered advancing technologies that threatened to change war and directly alter cavalry’s armament, tactics, and overall role. With airplanes as with bicycles and other new technologies, cavalry officers were cautious. Rather than uncritically embracing or rejecting new technologies completely, cavalrymen tested them before coming to conclusions. Cavalrymen cautiously examined the capabilities of airplanes, developed applications and doctrine for joint operations, and in the United States, even tried to develop their own specially designed aircraft. Airplanes promised to relieve the cavalry of low-priority missions, not threaten its existence. Instead of replacing the cavalry in the 1910s-1930s, airplanes worked cooperatively with cavalry in reconnaissance, security, communication, protection, and pursuit, a cooperation tested in maneuvers and officially blessed in both British and American doctrine. Just as cavalrymen became dependent on the close working relationship with airplanes in the 1920s-30s, this relationship altered drastically as aviation priorities and doctrine shifted to independent strategic bombardment from tactical support of ground troops. -
The Cierva Autodynamic Rotor
NASA/TP—2015–218714 The Cierva Autodynamic Rotor Jean-Pierre Harrison Ames Research Center Moffett Field, California March 2015 This page is required and contains approved text that cannot be changed. NASA STI Program ... in Profile Since its founding, NASA has been dedicated • CONFERENCE PUBLICATION. to the advancement of aeronautics and space Collected papers from scientific and science. The NASA scientific and technical technical conferences, symposia, information (STI) program plays a key part in seminars, or other meetings sponsored helping NASA maintain this important role. or co-sponsored by NASA. The NASA STI program operates under the • SPECIAL PUBLICATION. Scientific, auspices of the Agency Chief Information technical, or historical information from Officer. It collects, organizes, provides for NASA programs, projects, and archiving, and disseminates NASA’s STI. missions, often concerned with subjects The NASA STI program provides access to having substantial public interest. the NTRS Registered and its public interface, the NASA Technical Reports Server, thus • TECHNICAL TRANSLATION. providing one of the largest collections of English-language translations of foreign aeronautical and space science STI in the scientific and technical material world. Results are published in both non- pertinent to NASA’s mission. NASA channels and by NASA in the NASA STI Report Series, which includes the Specialized services also include organizing following report types: and publishing research results, distributing specialized research announcements and • TECHNICAL PUBLICATION. Reports feeds, providing information desk and of completed research or a major personal search support, and enabling data significant phase of research that present exchange services. the results of NASA Programs and include extensive data or theoretical For more information about the NASA STI analysis. -
Rotodyne-2-Rtf-Mod.Pdf
1 The Fairey Rotodyne: An Idea Whose Time Has Come – Again? Dr. Bruce H. Charnov BASED ON From Autogiro to Gyroplane: The Amazing Survival of an Aviation Technology Published by Praeger Publishers, July 2003 I It was first flown on November 6, 1957 at the Fairey facility at White Waltham with Chief Helicopter Test Pilot Squadron Leader W. Ron Gellatly at the helm along with Assistant Chief Helicopter Test Pilot Lt. Cmdr. John G. P. Morton as Second Pilot. In the Rotodyne1 “Y” form (XE521), it carried a crew of two and forty passengers, and, receiving lift from fixed wings of 46 feet 6 inches, was propelled forward by two wing-mounted 3,000 shaft hp Napier Eland NEL3 turboprop engines. But this was no ordinary aircraft – its 58 foot 8 inch fuselage could lift off and cruise as a helicopter with four tip- mounted pressure jets powering rotors that provided a disk 90 feet in diameter. The tip jets of the stainless steel rotors were powered by the same Eland engines which were coupled with compressors to force air into the tip-rotor pressure jets. Fuel was mixed with the compressed air and then ignited to create thrust capable of turning the rotor. But once aloft, the Fairy Rotodyne could disengage its rotor, which would then unload and autorotate to provide approximately 65% of the aircraft’s lift. The first transition from vertical to horizontal flight was on April 10, 1958. This, then, was the realization of a quest to merge the benefits of the autogiro, helicopter and airplane2 – and, viewing the surviving film of its flight, it was a stunning achievement! That film, after Westland Aircraft LTD (having acquired Fairey Aviation on May 2, 1960) cancelled the Rotodyne project with the ending of official funding on February 26, 1962, and a few surviving components in the British Rotorcraft Museum in Weston-super-Mare (sometimes on loan to the Museum of Army Flying) are all that remains of this magnificent achievement. -
Aviation Con Us Yet Again
GEOFF ROBISON PRESIDENT, VINTAGE AIRCRAFT ASSOCIATION Authority and potentials inter is now on the ho val held every Labor Day weekend in see why I use the term "busy." Many rizon here at home. Auburn, Indiana. If you haven't had thanks also go out to all of the local With the holidays just the opportunity to ride in a New Stan chapter volunteers who supported around the corner, it dard, you really need to experience us in hosting all of these events. We won't be long before this aircraft. The crew of the New simply couldn't do it without you! OldW Man Winter will be barking at Standard is a bunch of crazy "wing The world of sport aviation con us yet again. Oh well, my attitude nuts," so we had a really good time tinues to face unprecedented chal has always been that "the sooner hosting them for this event. Many lenges to our right to fly. It seems it gets here, the sooner it's over." I thanks to "Scooter" and his crazy cast to me as though nearly every layer clearly remember just a few months of government regulators seems to ago reflecting about how long this The world of think that they aren't doing their past winter seemed to hang around job unless they periodically fire a here in Indiana. It was a long and shot across our bow to make sure we brutal one that I sure hope we don't sport aviation haven't forgotten about their "au see repeated. -
THE PHILADELPHIA REGION: the Cradle of Rotary-Wing Aviation in the US
Frank Piasecki flying the PV-2, which he designed while a student at the University of Pennsylvania in Philadelphia. THE PHILADELPHIA REGION: The Cradle of Rotary-Wing Aviation in the US By Robert Beggs he City of Philadelphia, located in the beautiful Delaware Valley of Pennsylvania, is most notable for its rich history, Tits lawyers, its cheesesteaks and more recently its Super Bowl-winning professional football team. In 2019, Philadelphia will again be center stage as it hosts the Vertical Flight Society’s Forum 75! Celebrating the Society’s Diamond Anniversary in Philadelphia is quite fitting and a homecoming of sorts for our Society. Philadelphia is undeniably the cradle of rotary-wing aviation development in the US and was the location of the inaugural meeting of rotary-wing aviation pioneers on April 3, 1945, at the Engineers Club of Philadelphia on Spruce Street, just a few blocks from where Forum 75 will be held. The aviation history of Philadelphia could fill volumes, but this summary will help you to appreciate how it all began and why we still say there are more “rotorheads” in Philadelphia than Harold Pitcairn’s Cierva C.8W Autogiro made the first anyplace else in the world. rotary-wing flight in America at Bryn Athyn in 1928. Let’s take a trip back to the 1920s, to a small town just north on the Pitcairn property. The next year, Pitcairn acquired rights of Philadelphia named Bryn Athyn. The town was home to the to Cierva’s patents and formed the Pitcairn-Cierva Autogiro wealthy and influential Pitcairn family.Harold Pitcairn was an Company of America. -
A History of Helicopter Flight
A History of Helicopter Flight J. Gordon Leishman Professor of Aerospace Engineering, University of Maryland, College Park. "The idea of a vehicle that could lift itself vertically from the ground and hover motionless in the air was probably born at the same time that man first dreamed of flying." Igor Ivanovitch Sikorsky Contents Overview 1. T he Dream of True Flight 2. Ke y Problems in Attaining Vertical Flight 3. Ea rly Thinking 4. En gines: A Key Enabling Technology 5. T he First Hoppers 6. N ot Quite a Helicopter 7. Su ccess at Last 8. Mo re Successes - First Production Machines 9. D on't Forget Autogiros 10. Ma turing Technology 11. C ompounds, Tilt-Wings and Tilt-Rotors R eferences Text on all pages © J. G. Leishman 2000, with extracts from the author's book "Principles of Helicopter Aerodynamics" © Cambridge University Press 2000. Overview During the past sixty years since their first successful flights, helicopters have matured from unstable, vibrating contraptions that could barely lift the pilot off the ground, into sophisticated machines of extraordinary flying capability. They are able to hover, fly forward, backward and sideward, and perform other desirable maneuvers. Igor Sikorsky lived long enough to have the satisfaction of seeing his vision of a flying machine "that could lift itself vertically from the ground and hover motionless in the air" come true in many more ways than he could have initially imagined. At the beginning of the new Millennium, there were in excess of 40,000 helicopters flying worldwide. Its civilian roles encompass air ambulance, sea and mountain rescue, crop dusting, fire fighting, police surveillance, corporate services, and oil-rig servicing. -
Principles of Helicopter Aerodynamics
P1: SYV/SPH P2: SYV/UKS QC: SYV/UKS T1: SYV CB268-FM April 26, 2002 17:42 Char Count= 0 Principles of Helicopter Aerodynamics J. GORDON LEISHMAN University of Maryland P1: SYV/SPH P2: SYV/UKS QC: SYV/UKS T1: SYV CB268-FM April 26, 2002 17:42 Char Count= 0 TO MY STUDENTS in appreciation of all they have taught me PUBLISHED BY THE PRESS SYNDICATE OF THE UNIVERSITY OF CAMBRIDGE The Pitt Building, Trumpington Street, Cambridge, United Kingdom CAMBRIDGE UNIVERSITY PRESS The Edinburgh Building, Cambridge CB2 2RU, UK 40 West 20th Street, New York, NY 10011-4211, USA 10 Stamford Road, Oakleigh, VIC 3166, Australia Ruiz de Alarcon´ 13, 28014 Madrid, Spain Dock House, The Waterfront, Cape Town 8001, South Africa http://www.cambridge.org C Cambridge University Press 2000 This book is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University Press. First published 2000 Reprinted with corrections 2001 Printed in the United States of America Typeface Times Roman 10/12 pt. System LATEX2ε [TB] A catalog record for this book is available from the British Library. Library of Congress Cataloging in Publication Data Leishman, J. Gordon. Principles of helicopter aerodynamics / J. Gordon Leishman. p. cm. Includes bibliographical references (p. ). ISBN 0-521-66060-2 (hardcover) 1. Helicopters – Aerodynamics. TL716.L43 2000 629.133352 – dc21 99-38291 CIP ISBN 0 521 66060 2 hardback P1: SYV/SPH P2: SYV/UKS QC: -
Universidad Carlos III De Madrid Escuela Politecnica´ Superior Aerospace Engineering Department
Universidad Carlos III de Madrid Escuela Politecnica´ Superior Aerospace Engineering Department Aerospace Engineering Bachelor Thesis Redesign of the Rotor Head of the C30 Autogyro Author Supervisor Jose Barranco Alba Pablo Fajardo Pe~na September 2018 Abstract Asociaci´onJuan de la Cierva Codorn´ıu(AJCC) is devoted to the reconstruction of a commemorative replica of the C.30 autogiro to be flown in national aeronautic exhibitions. In collaboration with the association, the present project focusses on two tasks: the research on a material for the disc of the blade friction damper and the design of a model that reproduces the blade motion in the steady forward flight. A number of candidate materials proposed are ranked according a figure of merit (FoM) which balances thermo-mechanical properties with an index of performance (IoP) and cost. The technique used to weight the properties is a modification of the classical digital logic (DL) method. Mainly aluminium alloys show the optimum balance to manufacture the damper friction disc. The blade motion, simulated for the steady forward flight (auto-rotation), makes use of Euler's equations for a rotating rigid body. The main assumptions rely on small angle approximation, flat Earth, an ideal 2D aerodynamics model and Coulomb's friction law for damping. The results show the two motions inherently lagged by 90◦ and absolute compatibility with the theoretical formulation by means of Fourier's series. Simulations are numerically run at eight different airspeeds along the C.30 range of operation. As the inertial forces become dominant over the aero- dynamic forces, the amplitude of both motions asymptotically tends to zero.