Aviation Commons^™

Integrating Mammalian Hazards With Management At U.S. Civil Airports: A Case Study., Kristin M. Biondi, Jerrold L. Belant, James A. Martin, Travis L. Devault, Guiming Wang

United States Department of Agriculture Wildlife Services: Staff Publications

Wildlife incidents with U.S. civil aircraft cost an estimated $1.4 billion from 1990 to 2010, with mammals 5 times more likely to cause damage than other wildlife. We surveyed 2 general aviation (GA) airports and 6 Part-139 certificated (i.e., certified) airports to assess efficacy of management practices for mammalian species hazardous to aircraft. We obtained information on mammalian species present on airport grounds, types and estimated effectiveness of management techniques, and effort spent on wildlife management. We evaluated management techniques relative to aircraft–wildlife collisions (i.e., incident) frequencies taken from Federal Aviation Administration’s (FAA) National Wildlife Strike Database and species hazard …

An Analysis Of Helicopter Ems Accidents Using Hfacs: 2000-2012, Christopher G. Bryan

Doctoral Dissertations and Master's Theses

In 1972, the first hospital based civilian helicopter emergency medical service (HEMS) in the United States began operations. While the use of helicopters to transport medical casualties started decades previously, St. Anthony Flight for Life represented the start of an industry that would grow rapidly in the years to follow, both in the US and around the world (Flight for Life Colorado, n.d.).

Helicopters provide a valuable contribution to the field of medicine. They are faster than ground-based transportation and able to reach areas considered otherwise remote or impassible. They are highly manoeuvrable, unhindered by traffic, and can land in …

Finite Element Modeling Of Macro Fiber Composite Actuators With Application To Wing De-Icing, Boutros Youssef Azizi

Doctoral Dissertations and Master's Theses

Icing can have a profound impact on aircraft performance during inclement weather conditions. Aircraft icing primarily occurs on the leading edge of wings, tails and engines. The de-icing/anti-icing technologies currently in use are typically bulky, heavy, cover the entire airfoil surface and consume high energy. These drawbacks highlight the need for a de-icing technique that can overcome some or all of the aforementioned problems. Therefore, in this thesis, a proposed de-icing technique is studied in which lightweight Macro Fiber Composite (MFC) actuators are used to break the adhesive bond between the leading edge of a wing and an accumulated ice …

Secure Ads-B: Towards Airborne Communications Security In The Federal Aviation Administration's Next Generation Air Transportation System, Richard C. Agbeyibor

Theses and Dissertations

The U.S. Congress has mandated that all aircraft operating within the National Airspace System, military or civilian, be equipped with ADS-B transponders by the year 2020. The ADS-B aircraft tracking system, part of the Federal Aviation Administration's NextGen overhaul of the Air Transportation System, replaces Radar-based surveillance with a more accurate satellite-based surveillance system. However, the unencrypted nature of ADS-B communication poses an operational security risk to military and law enforcement aircraft conducting sensitive missions. The non-standard format of its message and the legacy communication channels used by its transponders make the ADS-B system unsuitable for traditional encryption mechanisms. FPE, …

Applying Lean To The F-15 Maintenance Process For The Royal Saudi Air Force, Mohammad Alamri

Theses and Dissertations

The thesis was about applying lean to the F-15 maintenance process in Royal Saudi Air Force. The researcher collected the data by using several questionnaires. Researcher used external lean expert recommendation to avoid bias, the F-15 maintenance process improved theoretically.

The Impact Of Training And Technology On The Future Of Aviation, Jennifer Oberg

Graduate Student Works

The comprehensive exam proposal is intended to address the core competency requirements for the degree of Master of Aeronautical Science. In addition, the proposal will address the competency requirements for the Aviation Education Specialization. In partial fulfillment of these requirements, the proposal will examine human factors as they pertain specifically to the arena of unmanned flight, the impact computer based training and web based training advances have and will continue to have on the aviation community, the technological, social, environmental, and political aspects of the air cargo industry as they pertain to the industry’s survival, the ability of Next Generation …

Low Speed Re-Fuelling Of Unmanned Aerial Vehicles Using The Drogue System, Ian R. Mcandrew, Elena Navarro

Publications

Unmanned Aerial Vehicles (UAV) are being required to be used in more and more complex situations with larger payloads for extended periods of time. Increasing the expectations and operating ceiling requires increased amounts fuel, that thus limits the potential payloads. This dichotomy has led to the quest for more fuel efficient UAVs; however, when designs are improved then their expectations are increased further. In manned aircraft this can be achieved by in-flight re-fuelling. This research is focused on the process of re-fuelling a UAV at low speeds and the aerodynamics considerations and problems it potentially brings. Practical conclusions to these …

Cama Newsletter - February, 2014, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

An eleven page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

Cheating Death, Combat Air Rescues In Vietnam And Laos, George Marrett

ERAU Prescott Aviation History Program

Hear the exciting story of George Marrett’s year as a “Sandy” rescue pilot with the 602d Fighter Squadron in 1968-69. Flying from Thailand they helped rescue downed USAF & USN pilots in Laos and Vietnam. He flew the WW II vintage Douglas A-1 Skyraider and completed 188 combat missions ; 600 combat hours. Flying low and slow, at treetop level, in all weather, it was truly hazardous duty every day!

Sac Drone History, John Dale

ERAU Prescott Aviation History Program

Learn about the previously classified Strategic Air Command drone reconnaissance program covering targets in China, N. Korea, & N. Vietnam, from the pilot who was in charge. Specially modified C-130s launched the drones that were then recovered in mid-air by helicopters. They went where manned aircraft could not and some wouldn’t make it back! This program contributed to the amazing UAVs of today.

State-Space Representation Of The Unsteady Aerodynamics Of Flapping Flight, Haithem E. Taha, Muhammad R. Hajj, Philip S. Beran

United States Air Force: Publications

A state-space formulation for the aerodynamics of flapping flight is presented. The Duhamel's principle, applied in linear unsteady flows, is extended to non-conventional lift curves to capture the LEV contribution. The aspect ratio effects on the empirical formulae used to predict the static lift due to a stabilized Leading Edge Vortex (LEV) are provided. The unsteady lift due to arbitrary wing motion is generated using the static lift curve. Then, state-space representation for the unsteady lift is derived. The proposed model is validated through a comparison with direct numerical simulations of Navier-Stokes on hovering insects. A comparison with quasi-steady models …

Analysis Of Software Contributions To Military Aviation And Drone Mishaps, Veronica Foreman, Francesca Favaro, Joseph Saleh

Faculty Publications

Software is assuming an increasing role in the aerospace industry, and by the same token it is also playing an increasing role in many recent incidents and accidents of both military and commercial vehicles. To better understand this role, we examine two case studies from the accident database of the Air Force Accident Investigation Board (AIB). We previously illustrated the limitations of the notion of “software failure” and developed, in its stead, the notion of software contribution to adverse events. We show here how specific operational scenarios, generally unconsidered during the software development and testing, trigger those contributions. We provide …

Airmen With Mild Traumatic Brain Injury (Mtbi) At Increased Risk For Subsequent Mishaps, Casserly R. Whitehead, Timothy S. Webb, Timothy S. Wells, Kari L. Hunter

United States Air Force: Publications

Background: Little is known regarding long-term performance decrements associated with mild Traumatic Brain Injury (mTBI). The goal of this study was to determine if individuals with an mTBI may be at increased risk for subsequent mishaps. Methods: Cox proportional hazards modeling was utilized to calculate hazard ratios for 518,958 active duty U.S. Air Force service members (Airmen) while controlling for varying lengths of followup and potentially confounding variables. Two non-mTBI comparison groups were used; the second being a subset of the original, both without head injuries two years prior to study entrance. Results: Hazard ratios indicate that the causes of …

Ascending Higher: The Story Of Aviation At Western, Tom Thinnes Sr., Steve Jones, Gil Sinclair, Raymond Thompson

All Books and Monographs by WMU Authors

Western Michigan University College of Aviation celebrates 75 years of aviation education. From modest beginnings in 1939, our curriculum has expanded to offer degrees in aviation flight science, aviation management and operations, and aviation maintenance technology. We currently have a fleet of advanced training aircraft, modern facilities in Battle Creek and more than 740 undergraduate students in the program.

With this book, we take a look back. We celebrate the visionaries of the past who helped us realize our current successes. We commemorate the events and advancements in our storied aviation program. And we look to the bright future that …

The Effect On Stockholder’S Wealth On Critical Systems Failure And Remedy: The Boeing 787 Case, Jayendra Gokhale, Sunder Raghavan, Victor J. Tremblay

Accounting, Economics, Finance, and Information Sciences - Daytona Beach

In this paper we analyze the effect of Boeing Dreamliner 787’s battery problems on stockholder wealth. Using the event study methodology, we show that the recall in January of 2013 initially caused the company’s cumulative abnormal returns to fall by almost 4% in four trading days after the recall. This was followed by an announcement by two major airlines to ground all of the 787 Dreamliner jets. The FAA also ordered all US airlines to ground their 787s and announced an investigation to review all critical systems of 787s. However within four months of the investigation, FAA approved Boeing’s revisions …

Importance Of Sources Using The Repeated Fusion Method And The Proportional Conflict Redistribution Rules #5 And #6, Florentin Smarandache, Jean Dezert

Branch Mathematics and Statistics Faculty and Staff Publications

We present in this paper some examples of how to compute by hand the PCR5 fusion rule for three sources, so the reader will better understand its mechanism. We also take into consideration the importance of sources, which is different from the classical discounting of sources.

Decision To Use An Airframe Parachute In A Flight Training Environment, Scott R. Winter, Richard O. Fanjoy, Chien-Tsung Lu, Thomas Q. Carney, James P. Greenan

Publications

The purpose of this study was to complete a qualitative analysis of the decision-making process used by pilots to determine whether or not to deploy an airframe parachute system. A sample of participants from the subject university’s flight training program was selected to complete a scripted simulator flight in instrument flight conditions. During the flight, participants experienced an engine failure while enroute during IFR conditions. The script was examined and validated by an expert panel who determined use of the airframe parachute was the most appropriate outcome for the scenario. Interestingly, only 9 of the 21 participants responded as expected …

Keeping The Skies Safe, Massood Towhidnejad, Andrew J. Kornecki

Department of Electrical Engineering and Computer Science - Daytona Beach

Professors Massood Towhidnejad and Andrew Kornecki shine a light on how their lab is helping government and the aviation industry to enhance the safety and security of software-intensive systems.

Aircraft Materials And Analysis, Tariq Siddiqui

Publications

Note: This pdf only includes chapter 1 and 10.

Complete coverage of aircraft design, manufacturing, and maintenance

Aircraft Materials and Analysis addresses aircraft design, mechanical and structural factors in aviation, flight loads, structural integrity, stresses, properties of materials, compression, bending, and aircraft fatigue. Detailed analysis of the failure process is provided.

This authoritative guide examines materials used in aircraft construction such as aluminum, steel, glass, composite, rubber, and carbon fiber. Maintenance procedures for corrosion and aging aircraft are discussed and methods of inspection such as nondestructive testing and nondestructive inspection are described. Accident investigation case studies review aircraft design, material …

Autonomous Capabilities For Small Unmanned Aerial Systems Conducting Radiological Response: Findings From A High-Fidelity Discovery Experiment, Brittany Duncan, Robin Murphy

School of Computing: Faculty Publications

This article presents a preliminary work domain theory and identifies autonomous vehicle, navigational, and mission capabilities and challenges for small unmanned aerial systems (SUASs) responding to a radiological disaster. Radiological events are representative of applications that involve flying at low altitudes and close proximities to structures. To more formally understand the guidance and control demands, the environment in which the SUAS has to function, and the expected missions, tasks, and strategies to respond to an incident, a discovery experiment was performed in 2013. The experiment placed a radiological source emitting at 10 times background radiation in the simulated collapse of …