RQ-1 Predator/MQ-9 Reaper
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Designing Unmanned Aircraft Systems: a Comprehensive Approach
Designing Unmanned Aircraft Systems: A Comprehensive Approach Jay Gundlach Aurora Flight Sciences Manassas, Virginia AIAA EDUCATION SERIES Joseph A. Schetz, Editor-in-Chief Virginia Polytechnic Institute and State University Blacksburg, Virginia Published by the American Institute of Aeronautics and Astronautics, Inc. 1801 Alexander Bell Drive, Reston, Virginia 20191-4344 NOMENCLATURE Item Definition A area; availability; ground area covered in a mission; radar antenna area, m2; conversion between radians and minutes of arc Aa achieved availability Abound bounded area for a closed section 2 Ad IR detector sensitive area, m 2 Aeff effective antenna area, length Ai inherent availability AO operational availability; UA availability 2 Ap propeller disk area, length ARate area coverage rate Ar effective collection area of optical receiver ASurf surface area AR aspect ratio ARWet wetted aspect ratio AR0 aspect ratio along spanwise path a UA acceleration; maximum fuselage cross-section width; speed of sound; detector characteristic dimension awa radar mainlobe width metric awr radar mainlobe width metric ax acceleration along the x direction (acceleration) B acuity gain due to binoculars; boom area; effective noise bandwidth of receiving process, Hz 21 BDoppler Doppler bandwidth (time ) BN effective noise bandwidth of the receiving process 21 BT radar signal bandwidth (time ) BSFCSL brake specific fuel consumption at sea level b web length; wing span; maximum fuselage cross- section height bw wing span b0 span without dihedral C cost of contractor -
Pdf, 2005, Accessed Oct
i National Aeronautics and Space Administration Ikhana Unmanned Aircraft System Western States Fire Missions Peter W. Merlin National Aeronautics and Space Administration NASA History Office Washington, D.C. 2009 ii Library of Congress Cataloging-in-Publication Data Merlin, Peter W., 1964- Ikhana Unmanned Aircraft System : Western States fire missions / by Peter W. Merlin. p. cm. “August 2009.” 1. Aeronautics in forest fire control--West (U.S.) 2. Aerial photography in forestry--West (U.S.) 3. Drone aircraft. 4. Predator (Drone aircraft) 5. United States. National Aeronautics and Space Administration. I. Title. SD421.43.M47 2009 634.9’6180978--dc22 iii Contents Acknowledgements ............................................................................................................................. IV Preface ...................................................................................................................................................V Introduction .......................................................................................................................................VII Chapter One ...........................................................................................................................................1 Don’t Fear the Reaper Chapter Two .........................................................................................................................................19 Chariots of Fire Chapter Three .......................................................................................................................................39 -
Safety Considerations for Operation of Uavs in the NAS
SAFETY CONSIDERATIONS FOR OPERATION OF UNMANNED AERIAL VEHICLES IN THE NATIONAL AIRSPACE SYSTEM Roland E. Weibel and R. John Hansman Report No. ICAT-2005-1 March 2005 MIT International Center for Air Transportation Department of Aeronautics & Astronautics Massachusetts Institute of Technology Cambridge, MA 02139 USA 2 SAFETY CONSIDERATIONS FOR OPERATION OF UNMANNED AERIAL VEHICLES IN THE NATIONAL AIRSPACE SYSTEM by Roland E. Weibel and R. John Hansman Abstract There is currently a broad effort underway in the United States and internationally by several organizations to craft regulations enabling the safe operation of UAVs in the NAS. Current federal regulations governing unmanned aircraft are limited in scope, and the lack of regulations is a barrier to achieving the full potential benefit of UAV operations. To inform future FAA regulations, an investigation of the safety considerations for UAV operation in the NAS was performed. Key issues relevant to operations in the NAS, including performance and operating architecture were examined, as well as current rules and regulations governing unmanned aircraft. In integrating UAV operations in the NAS, it will be important to consider the implications of different levels of vehicle control and autonomous capability and the source of traffic surveillance in the system. A system safety analysis was performed according to FAA system safety guidelines for two critical hazards in UAV operation: midair collision and ground impact. Event-based models were developed describing the likelihood of ground fatalities and midair collisions under several assumptions. From the models, a risk analysis was performed calculating the expected level of safety for each hazard without mitigation. -
An Unmanned Aircraft System for Maritime Search and Rescue
An Unmanned Aircraft System for Maritime Search and Rescue by Andre Paul Meredith Thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Engineering at Stellenbosch University Supervisor: Prof Thomas Jones Department of Electrical and Electronic Engineering March 2011 Declaration By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Date: March 2011 Copyright © 2011 Stellenbosch University All rights reserved i Abstract Search and Rescue is an essential service provided by States and Militaries to search for, locate and rescue survivors of accidents and incidents. Civil Search and Rescue utilizes a system of well-trained professionals or volunteers, an effective Search and Rescue organization, supported by industry and other providers of infrastructure and assets. The service is rendered to save the lives of civilian individuals in imminent danger of losing their lives. Military (Combat) Search and Rescue is provided by militaries to save the lives of military practitioners in a similar predicament. In addition, Search and Rescue is performed over land and over the sea. All forms of Search and Rescue rely on capable, specialized assets for efficiency en affectivity. Assets are specified and chosen on the grounds of various factors, amongst others operating environment, operational profile, performance and special abilities. -
Unmanned Aerial Vehicle: Tecnologie E Prospettive Future
Alma Mater Studiorum · Università di Bologna SCUOLA DI SCIENZE Corso di Laurea Magistrale in Informatica Unmanned Aerial Vehicle: tecnologie e prospettive future Relatore: Presentata da: Luciano Bononi Marcello Allegretti Correlatore: Giampiero Giacomello Sessione II Anno Accademico 2015 - 2016 Quale è la vera vittoria? – Quella su se stessi Prima regola dell’Aikido Abstract Partendo dalla definizione di UAV e UAS, arrivando a quella di drone, nella tesi saranno definiti i termini precedenti, ossia un sistema aereo senza pilota a bordo, la nascita del termine drone e le tendenze attuali. Dopo una precisa classificazione nelle quattro categorie principali (droni per hobbisti, commerciali e militari di me- dia grandezza, militari specifici di grandi dimensioni e stealth da combattimento) saranno descritti gli ambiti di utilizzo: da un lato quello militare e della sicurez- za, dall’altro quello civile e scientifico. I capitoli centrali della tesi saranno il cuore dell’opera: l’architettura dell’UAV sarà descritta analizzando la totalità delle sue componenti, sia hardware che software. Verranno, quindi, analizzati i problemi re- lativi alla sicurezza, focalizzandosi sull’hacking di un UAV, illustrandone le varie tecniche e contromisure (tra cui anche come nascondersi da un drone). Il lavoro della tesi prosegue nei capitoli successivi con un’attenta trattazione della normativa vigente e dell’etica dei droni (nonché del diritto ad uccidere con tali sistemi). Il capitolo relativo alla tecnologia stealth sarà importante per capire le modalità di occultamento, le tendenze attuali e i possibili sviluppi futuri degli UAV militari da combattimento. Il capitolo finale sugli sviluppi futuri esporrà le migliorie tecno- logiche e gli obiettivi degli UAV negli anni a venire, insieme ad eventuali utilizzi sia militari che civili.