There Are Ways to Support Single Pilots Even Though Their Function Is Predominantly Independent
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N CH-47F FIELDING N U.S. ARMY in ACTION N INTERNATIONAL FOCUS
2008 CHINOOK NEWS n CH-47F FIELDING n U.S. ARMY IN ACTION n INTERNATIONAL FOCUS CHINOOK NEWS 2008 MISSION STATEMENT: AN INTEGRATED TEAM BRINGING TOGETHER THE BEST OF BOEING TO PROVIDE SYSTEMS AND SOLUTIONS THAT EMPOWER THE SOLDIERS OF TODAY AND TOMORROW. BOEING CHINOOKS STRIVING FOR EXCELLENCE IN THE PROGRAM IN THE FIELD his was a remarkable year for the worthiness testing and was turned over program. Chinooks continue to set Jack Dougherty, Director of H-47 to the U.S. Army customer. The CH-47F Tnew standards in performance Programs. While this versatile platform entered operational testing in April 2007 regardless of where they are deployed. In is recognized as a force multiplier in during which its performance received 2006, the Chinooks maintained high levels combat, we consistently see it used wide acclaim. In an August ceremony at of readiness and recorded more than in humanitarian missions at home and Fort Campbell, Ky., Bravo Company 73,000 flight-hours. In 2007, the first (Varsity), 7th Battalion, 101st Aviation MH-47Gs were deployed to Afghanistan. around the world. Regiment (Air Assault) officially fielded 12 This issue of Chinook News will showcase CH-47Fs. the many stories of the Chinook’s The CH-47F, with its newly designed performance in combat and in civil and modernized airframe, a Rockwell support missions around the world. You Collins Common Avionics Architecture also will hear from the courageous pilots System cockpit and a BAE Systems Digital and crews who conduct these missions, Advanced Flight Control System, is gener- and proudly featured is the new CH-47F ating interest around the world. -
Military Helicopter Modernization: Background and Issues for Congress
Order Code RL32447 CRS Report for Congress Received through the CRS Web Military Helicopter Modernization: Background and Issues for Congress June 24, 2004 Christian F. M. Liles Research Associate Foreign Affairs, Defense and Trade Division Christopher Bolkcom Specialist in National Defense Foreign Affairs, Defense and Trade Division Congressional Research Service ˜ The Library of Congress Military Helicopter Modernization: Background and Issues for Congress Summary Recent military operations, particularly those in Afghanistan and Iraq, have brought to the fore a number of outstanding questions concerning helicopters in the U.S. armed forces, including deployability, safety, survivability, affordability, and operational effectiveness. These concerns are especially relevant, and made more complicated, in an age of “military transformation,” the “global war on terrorism,” and increasing pressure to rein in funding for the military, all of which provide contradictory pressures with regard to DOD’s large, and often complicated, military helicopter modernization efforts. Despite these questions, the military use of helicopters is likely to hold even, if not grow. This report includes a discussion of the evolving role of helicopters in military transformation. The Department of Defense (DOD) fields 10 different types of helicopters, which are largely of 1960s and 1970s design. This inventory numbers approximately 5,500 rotary-wing aircraft, not including an additional 144 belonging to the Coast Guard, and ranges from simple “utility” platforms such as the ubiquitous UH-1 “Huey” to highly-advanced, “multi-mission” platforms such as the Air Force’s MH- 53J “Pave Low” special operations helicopter and the still-developmental MV-22B “Osprey” tilt-rotor aircraft. Three general approaches can be taken to modernize DOD’s helicopter forces: upgrading current platforms, rebuilding current helicopter models (often called recapitalization), or procuring new models. -
The Cutting Edge in Tiltrotor Technology Flying Further, Higher, Faster
The Cutting Edge in Tiltrotor Technology Flying Further, Higher, Faster Alfred Gessow Rotorcraft Center Department of Aerospace Engineering University of Maryland, College Park Maryland, 20742 Acknowledgements The Excalibur design team would like to thank those who took the time to assist us in the 2011 Design Competition. Professors: Dr. Vengalattore T. Nagaraj – Senior Research Scientist, Dept. of Aerospace Engineering, University of Maryland, College Park. Dr. Inderjit Chopra – Gessow Professor, Director of Gessow Rotorcraft Center (AGRC) Professor, Dept. of Aerospace Engineering, University of Maryland, College Park. Dr. J. Gordon Leishman – Minta Martin Professor of Engineering, Dept. of Aerospace Engineering, University of Maryland, College Park. Dr. Omri Rand – Shirley and Burt Harris Academic Chair, Technion Israel Institute of Technology, Technion City, Haifa, Israel. Industry Professionals: Charley Kilmain – Director, Rotor and Drive System Design, Bell Helicopter Textron, Inc., Fort Worth, Texas. Dr. Kenneth Rosen – Aero-Science Technology Associates LLC, Guilford, Connecticut. Dr. Wayne Johnson – Alexander A. Nikolsky Honorary Lecturer, NASA Ames Research Center, Moffett Field, California. Mr. Matthew Tarascio – Advanced Concepts, Sikorsky Innovation Lead, Sikorsky Aircraft Corporation, Stratford, Connecticut. Dr. Gaurav Gopalan – Assistant Research Scientist, University of Maryland. Mr. Cyrus Abdolah – Flight Simulation and Controls Engineer, Emerald Sky Technologies, LLC. Mr. Tony Lambregts – FAA Chief Scientific and Technical Advisor, Flight Guidance and Control. Mr. Nizar Bechara, ATP – Chief Pilot/Instructor, Royal Air Flight LLC, Columbia, Maryland. Fellow Graduate Students: A special thanks goes to Conor Stahlhut for his expertise in propeller aerodynamics Bharath Govindarajan, Moble Benedict, Ananth Sridharan, Benjamin Berry, Graham Bowen- Davies, and Joeseph Schmaus. I Table of Contents TABLE OF FIGURES .............................................................................................................. -
Helicopter Rescue Techniques Civilian Public Safety and Military Helicopter Rescue Operations First Edition October 2013
HELICOPTER RESCUE TECHNIQUES Civilian Public Safety and Military Helicopter Rescue Operations National SAR Academy Training Manu al This page intentionally blank Helicopter Rescue Techniques Civilian Public Safety and Military Helicopter Rescue Operations First edition October 2013 This training manual has been prepared by the United States Department of the Interior, National Park Service for the National SAR Academy (NSARA). As a publication of the federal government the text within this manual is not copyrighted under the copyright laws of the United States, however this manual does contain copyrighted images and illustrations. Such material is protected by United States Copyright Law and may not be reproduced without the express permission of the owner. Written by Ken Phillips, Branch Chief of Search and Rescue, National Park Service (NPS). The author is extremely grateful for the technical assistance of numerous individuals within the helicopter rescue community for their personal insight and suggestions. This includes; Cedric Smith, Engineer with CMC Rescue and helicopter SAR technician with Santa Barbara County SAR; Jim Frank, founder of CMC Rescue for his skill as an editor; Casey Ping, Program Manager with Travis County Starflight; Greg Sanderson, Firefighter/Paramedic and Helitac Standardization Coordinator with Los Angeles City Fire Department Air Operations; Diana Byrne for her editing. Additional contributions were provided by U.S. Park Police Aviation Unit, Yosemite SAR (YOSAR), Dean Ross, NPS Deputy Chief of Emergency Services, John Evans, NPS Park Ranger, Michael Peitz, Interagency Aviation Officer (USMC ret), Will Smith MD, and the staff of the USMC Mountain Warfare Training Center, California. All images credited as noted. -
54 VERTIFLITE November/December 2012 a Strong Financial Foundation and Business Structure, ACE Pending and Additional Patents Are Being Filed
Advanced Rotorcraft Technology, Inc. [Class E] AgustaWestland North America www.flightlab.com 11700 Plaza America Drive, Suite 1000, Reston, VA 20191 USA 635 Vaqueros Ave., Sunnyvale, CA 94085 USA +1 (703) 243 7733 (408) 523-5100 [email protected] AgustaWestland Philadelphia 3050 Red Lion Road, Philadelphia, PA 19114 USA ART has served the rotorcraft industry since 1982 with +1 (215) 281-1400 specialized rotorcraft consulting skills, computer aided aeromechanics engineering tools, flight dynamics models, AgustaWestland, a Finmeccanica company, is a global leader in simulation productivity tools and a wide range of training military and commercial vertical lift. With more than 100 years of solutions that include virtual training suites, flight training devices experience in the aerospace industry, AgustaWestland provides an and full flight simulators. Customers include military, commercial, unrivaled range of rotorcraft and vertical-lift products and academic and government organizations around the world. ART’s services for every military, government and commercial products are: FLIGHTLAB – Commercial-off-the-Shelf (COTS) application. The company’s R&D budget represents an important computer-aided engineering software to facilitate development, commitment to improve existing products as well as developing analysis and utilization of flight vehicle dynamics models in innovative solutions. All of this is combined with an excellent simulation applications; it supports rotary wing and fixed wing supportability level devoted to total customer satisfaction. aircraft modeling and analysis. SIMphony – Distributed host Providing unmatched capabilities with technologically software to synchronize FLIGHTLAB models to real time and advanced platforms is a distinctive AgustaWestland characteristic. integrate them with simulator cueing systems such as visuals, In 2011, AgustaWestland had 13,000 employees with major control loaders and motion platform. -
The Role of Dual-Use Helicopters in the Security and Defence Field, Edited by Alessandro Marrone and Michele Nones, 2015 14.50 EURO Edizioni Nuova Cultura
ISSN 2239-2122 20 IAI Research Papers T N. 1 European Security and the Future of Transatlantic Relations, edited by In the current debate on military capabilities and defence industry, the term “dual-use” HE means those technologies that can be used to develop systems and equipment for both R The IAI Research Papers are brief monographs written by one or Riccardo Alcaro and Erik Jones, 2011 OLE civilian and military purposes. Changes occurred in modes of technological innovation have HE OLE OF UAL SE more authors (IAI or external experts) on current problems of in- T R D -U N. 2 Democracy in the EU after the Lisbon Treaty, edited by Raaello Matarazzo, 2011 OF brought about a growing interconnection between the civilian, security and defence D ternational politics and international relations. The aim is to pro- N. 3 The Challenges of State Sustainability in the Mediterranean, edited by sectors, especially from an industrial point of view. In this context, “dual-use helicopters” UAL HELICOPTERS IN THE SECURITY mote greater and more up to date knowledge of emerging issues Silvia Colombo and Nathalie Tocci, 2011 refer to platforms that have been designed in compliance with certain standards and are -U and trends and help prompt public debate. Re-thinking Western Policies in Light of the Arab Uprisings, structurally built so that they can satisfy civilian, military or security users with only minimal SE N. 4 edited by H AND DEFENCE FIELD Riccardo Alcaro and Miguel Haubrich-Seco, 2012 adjustments or additions. This volume analyses the use of helicopters by armed forces, law ELICOPTERS enforcement agencies and emergency services, in three countries: Italy, France and the N. -
Aerodynamic Design of Helicopter Rotors for Reduced Brownout Glen R
Aerodynamic Design of Helicopter Rotors for Reduced Brownout Glen R. Whitehouse, Daniel A. Wachspress and Todd R. Quackenbush [email protected] , [email protected] , [email protected] Continuum Dynamics, Inc. Ewing, New Jersey, 08618 ABSTRACT Rotorcraft brownout is caused by the entrainment of dust and ground debris by the rotorwash during take-off and landing, and is a critical operational problem. Brownout affects safe operations due to the reduction of visibility, in addition to damaging engine components and rotor blades. Recent experience gained from operations in brownout with a variety of rotorcraft configurations, dynamically scaled test facilities as well as ongoing work with validated analyses at Continuum Dynamics, Inc. (CDI), indicates that aerodynamic modifications to the aircraft may offer a complementary approach to sensor-based brownout solutions. This paper reviews the underlying brownout flow-physics, with particular emphasis on the critical connection between wake dynamics and tip vortex properties, and the development of a strategy to best exploit fluid- dynamic mechanisms to reduce brownout without adversely affecting the aerodynamic performance of the rotor system. Particular emphasis will be placed on explaining why basic rotor scaling parameters have little influence on brownout and why the AW101/EH101/US101, and the Sea King with advanced blades, might offer improved brownout performance. Practical methods are presented for implementing modifications in a retrofittable manner that do not degrade the aerodynamic performance of the helicopter and are commensurate with current procurement systems. NOMENCLATURE * INTRODUCTION CD drag coefficient Brownout - the entrainment and circulation of particles, dust and debris from the ground during rotorcraft take-off and CT thrust coefficient landing over unprepared fields - represents a serious D drag problem for rotorcraft operations (see Figure 1). -
Brownout Simulations of Model-Rotors in Ground Effect
MATEC Web of Conferences 314, 01006 (2020) https://doi.org/10.1051/matecconf/202031401006 ICSC-ISATECH 2019 Brownout Simulations of Model-Rotors In Ground Effect F. Rovere1,*, G.N. Barakos1,†, and R. Steijl1,‡ 1CFD Laboratory School of Engineering, University of Glasgow Abstract. In this work computational fluid dynamics is used to validate experimental results for a two-bladed small rotor In Ground Effect conditions. The paper focuses on the evaluation and prediction of the rotor outwash generated in ground effect. Time-averaged outflow velocities are compared with experimental results, and the simulated flow field is used for safety studies using the PAXman model and particle tracking methods. The aircraft weights have been studied, evaluating scaling factors to define how helicopter weight can affect the outflow forces and the particle paths. Results show how the wake generated by heavier helicopters can lead to stronger forces on ground personnel and push the particles farther away from the rotor. Nomenclature Acronyms CFD Computational Fluid Dynamics DVE Degraded Visual Environment IGE In Ground Effect MTOW Maximum Take-Off Weight MUSCL Monotone Upstream Centered Schemes for Conservations Laws OGE Out of Ground Effect * PhD Student - [email protected] † Professor - [email protected] ‡ Senior Lecturer - [email protected] © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). MATEC Web of Conferences 314, 01006 (2020) https://doi.org/10.1051/matecconf/202031401006 ICSC-ISATECH 2019 PIV Particle Image Velocimetry Greek Ν Kinematic viscosity m2/s Ψ Local azimuth angle, deg. -
MH-53J/M PAVE LOW III/IV Systems Engineering Case Study Air Force Center for Systems Engineering
Air Force Institute of Technology AFIT Scholar AFIT Documents 1-7-2011 MH-53J/M PAVE LOW III/IV Systems Engineering Case Study Air Force Center for Systems Engineering William Albery Raymond L. Robb Lee Anderson Follow this and additional works at: https://scholar.afit.edu/docs Part of the Systems Engineering Commons Recommended Citation Air Force Center for Systems Engineering; Albery, William; Robb, Raymond L.; and Anderson, Lee, "MH-53J/M PAVE LOW III/IV Systems Engineering Case Study" (2011). AFIT Documents. 35. https://scholar.afit.edu/docs/35 This Report is brought to you for free and open access by AFIT Scholar. It has been accepted for inclusion in AFIT Documents by an authorized administrator of AFIT Scholar. For more information, please contact [email protected]. MH-53J/M PAVE LOW III/IV SYSTEMS ENGINEERING CASE STUDY WILLIAM ALBERY, Ph.D. RAYMOND L. ROBB LT COL LEE ANDERSON Air Force Center for Systems Engineering (AFIT/SY) Air Force Institute of Technology 2950 Hobson Way, Wright-Patterson AFB OH 45433-7765 Foreword At the direction of the former Secretary of the Air Force, Dr. James G. Roche, the Air Force Institute of Technology (AFIT) established the Air Force Center for Systems Engineering (AF CSE) at its Wright Patterson AFB campus in 2003. With academic oversight by a subcommittee on Systems Engineering (SE), chaired by then-Air Force Chief Scientist Dr. Alex Levis, the AF CSE was tasked to develop case studies of SE implementation during concept definition, acquisition, and sustainment. The committee drafted an initial case outline and learning objectives, and suggested the use of the Friedman-Sage Framework to guide overall analysis.