Download or read book The Implications of Handling Qualities in Civil Helicopter Accidents Involving Hover and Low Speed Flight written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of increasing accident rates in Army helicopters in hover and low speed flight, a study was made in 1999 of accidents which could be attributed to inadequate stability augmentation. A study of civil helicopter accidents from 1993-2004 was then undertaken to pursue the issue of poor handling qualities in helicopters which, in almost all cases, had no stability augmentation. The vast majority of the mishaps studied occurred during daylight in visual meteorological condition, reducing the impact of degraded visual environments (DVE) on the results. Based on the Cooper-Harper Rating Scale, the handling qualities of many of the helicopters studied could be described as having from "very objectionable" to "major" deficiencies. These costly deficiencies have resulted in unnecessary loss of life, injury, and high dollar damage. Low cost and lightweight augmentation systems for helicopters have been developed in the past and are still being investigated. They offer the potential for significant reductions in the accident rate. Dugan, Daniel C. and Delamer, Kevin J. Ames Research Center NASA/TM-2005-213473, A-050003
Download or read book The Implications of Handling Qualities in Civil Helicopter Accidents Involving Hover and Low Speed Flight written by and published by . This book was released on 2005 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Helicopter Flight Dynamics written by Gareth D. Padfield and published by John Wiley & Sons. This book was released on 2018-09-07 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Book The behaviour of helicopters and tiltrotor aircraft is so complex that understanding the physical mechanisms at work in trim, stability and response, and thus the prediction of Flying Qualities, requires a framework of analytical and numerical modelling and simulation. Good Flying Qualities are vital for ensuring that mission performance is achievable with safety and, in the first and second editions of Helicopter Flight Dynamics, a comprehensive treatment of design criteria was presented, relating to both normal and degraded Flying Qualities. Fully embracing the consequences of Degraded Flying Qualities during the design phase will contribute positively to safety. In this third edition, two new Chapters are included. Chapter 9 takes the reader on a journey from the origins of the story of Flying Qualities, tracing key contributions to the developing maturity and to the current position. Chapter 10 provides a comprehensive treatment of the Flight Dynamics of tiltrotor aircraft; informed by research activities and the limited data on operational aircraft. Many of the unique behavioural characteristics of tiltrotors are revealed for the first time in this book. The accurate prediction and assessment of Flying Qualities draws on the modelling and simulation discipline on the one hand and testing practice on the other. Checking predictions in flight requires clearly defined mission tasks, derived from realistic performance requirements. High fidelity simulations also form the basis for the design of stability and control augmentation systems, essential for conferring Level 1 Flying Qualities. The integrated description of flight dynamic modelling, simulation and flying qualities of rotorcraft forms the subject of this book, which will be of interest to engineers practising and honing their skills in research laboratories, academia and manufacturing industries, test pilots and flight test engineers, and as a reference for graduate and postgraduate students in aerospace engineering.
Download or read book A Study of Task Performance and Handling Qualities Evaluation Techniques at Hover and in Low Speed Flight written by Howard P. Harper and published by . This book was released on 1969 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flight test study was conducted to evaluate the effects of compound configuration on helicopter flying and handling qualities in low-speed flight and to develop task performance evaluation techniques. The S-61F compound helicopter test-bed aircraft was used to perform a series of hover and low-speed tasks while objective measures and pilot opinion data were recorded. The task sequences were first performed in the full compound configuration and then repeated with the wings and horizontal stabilizer removed. This provided data for an evaluation of the influence of the wing and horizontal stabilizer on helicopter flying and handling qualities. (Author).
Download or read book Composite Helicopter Accident Profiles written by David L. Green and published by . This book was released on 1994 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aviation Safety and Pilot Control written by National Research Council and published by National Academies Press. This book was released on 1997-03-28 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adverse aircraft-pilot coupling (APC) events include a broad set of undesirable and sometimes hazardous phenomena that originate in anomalous interactions between pilots and aircraft. As civil and military aircraft technologies advance, interactions between pilots and aircraft are becoming more complex. Recent accidents and other incidents have been attributed to adverse APC in military aircraft. In addition, APC has been implicated in some civilian incidents. This book evaluates the current state of knowledge about adverse APC and processes that may be used to eliminate it from military and commercial aircraft. It was written for technical, government, and administrative decisionmakers and their technical and administrative support staffs; key technical managers in the aircraft manufacturing and operational industries; stability and control engineers; aircraft flight control system designers; research specialists in flight control, flying qualities, human factors; and technically knowledgeable lay readers.
Download or read book Fatal Traps for Helicopter Pilots written by Greg Whyte and published by McGraw Hill Professional. This book was released on 2006-12-20 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acquire the Life-Saving Skills Needed to Eliminate or Reduce Most Helicopter Accidents A vital resource for pilots, helicopter enthusiasts, and aircraft maintenance technicians, Fatal Traps for Helicopter Pilots analyzes all aspects of helicopter accidents, including flight basics, engineering, meteorology, flight training, and human factors. This life-saving guide shows how proper preparation can help prevent accidents by addressing causes such as aerodynamic problems, mechanical failures, poor loading, mid-air collisions, and more. Filled with case studies and first-hand accounts of accidents, the book organizes accident types by primary causes, presenting proven methods for eliminating or reducing the possibility of each type. Greg Whyte, an ex commercial helicopter pilot and professional aviation writer, draws on his own flying experiences and those of other flight veterans to provide a wealth of practical information and safety tips that are essential for everyone who flies, maintains or crews in helicopters. Filled with over 100 helpful illustrations, Fatal Traps for Helicopter Pilots enables readers to: Identify and address the common causes of helicopter accidents Explore in-depth examples of accident scenarios Examine the technical details of accident causes Review case studies and first-hand accounts of accidents Learn from the plain-English notes on avoidance and recovery Inside This Aviation Accident-Prevention Guide • Basic Flight Principles • Vortex Ring State • Recirculation • Ground Resonance • Retreating Blade Stall • Dynamic Rollover • Overpitching • Main Rotor Strikes • Mid-Air Collisions • Mast Bumping • Engine Failures • Tail Rotor Failures • Mechanical Failures • Fuel • Fire • Ditching • Loading Issues • Winching • Weather • Crew and Pre-flight Hazards • Human Factors • Training Mishaps
Download or read book Required Lateral Handling Qualities for Helicopters in Low speed Instrument Flight written by JOSEPH H. GOLDBERG and published by . This book was released on 1960 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Hazards of Helicopter Operations and Root Causes of Helicopter Accidents written by Franklin R. Taylor and published by . This book was released on 1986 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 1983 and 1984, Systems Control Technology, Inc. conducted a survey of civil helicopter pilot organizations from throughout the United States who were involved in a wide range of helicopter operations for the purpose of determining the hazards of helicopter operations and the root causes of the high rate of helicopter accidents. The survey was administered through personal interviews, meetings, and questionnaires. The derived questionnaire data included census data, profiles of the pilots work environment and procedures and their own perspectives on the hazards of helicopter operations and root causes of helicopter accidents. These data were compared with historical National Transportation Safety Board accident reports and accident briefs to determine more specifically the root causes of helicopter accidents. The results of the analysis include a list of hazards and probable root causes of accidents, as well as technological, training and standardization remedies to the causes.
Download or read book Influence of Pilot Incapacitation on Low Speed and Hovering Flight written by Douglas P. Harvey and published by . This book was released on 1976 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP written by and published by . This book was released on 1990 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1971 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Download or read book The Effects of Pilot Stress Factors on Handling Quality Assessments During US German Helicopter Agility Flight Tests written by and published by . This book was released on 1982 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cause Factor Human written by Olaf W. Skjenna and published by . This book was released on 1986 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This essay examines the human factor in helicopter accidents. Chaptersexamine aerodynamics, relevant human physiology, sources of stress, emergencies, accident investigation, crash kinetics, survivability andself-preservation.
Download or read book Helicopter Handling Qualities written by and published by . This book was released on 1982 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
