Aviation Commons^™

Determination Of Rejected Landing Roll Runway Point-Of-No-Return And Go-Around In Transport Category Airplanes, Nihad E. Daidzic, Ph.D., Sc.D.

International Journal of Aviation, Aeronautics, and Aerospace

The decelerate-accelerate-takeoff maneuver in transport category airplanes has been discussed. Mathematical model based on total energy conservation has been used to calculate the rejected landing point-of-no-return on a runway which will still enable the airplane to safely execute go-around and achieve regulatory screen heights and takeoff safety speeds. After this point has been exceeded or below the point-of-no-return speed no go-around should ever be considered. Landing long and fast and/or decelerating on slippery runways may very well result in an overrun which could be prevented if the go-around is attempted before reaching this critical runway point. The point-of-no-return on the …

Emerging Tools For Evaluating Safety Management Systems Effectiveness, T. Brady, A. Stolzer

Publications

Safety Management Systems (SMS) have become prevalent in a host of industries, including aviation, for managing safety, but little research has been performed to-date on measuring the effectiveness of SMS. This research examined the independent application of two related concepts to assess effective- ness: IO/SMS, an Input-Output economics concept applied to SMS, and Data Envelopment Analysis (DEA). Input-Output (IO) is a method for systematically determining the inter-relationships among ele- ments in a system. To determine if IO could be applied to SMS, it was necessary to calculate the relative importance to the system of the four components of SMS. Five …

What Are The Predictors Of System-Wide Trust Loss In Transportation Automation?, Stephen Rice, Scott R. Winter, John E. Deaton, Ismael Cremer

Publications

Prior research has examined how individuals place trust in single (e.g., Meyer, 2001, 2004) and multiple (e.g., Geels-Blair, Rice, & Schwark, 2013) automated devices when one fails. This has shown that participants are influenced by system-wide trust (SWT). What has been missing is an investigation into what types of people succumb to SWT effects. The current study attempts to replicate SWT findings and identify possible predictors of individuals likely to be influenced by SWT. The findings did demonstrate a replication of SWT. The study found that ‘‘feelings of negativity when automated devices fail’’ was a significant predictor of SWT theory.

Wide-Scale Small Unmanned Aircraft System Access To The National Airspace System, John Robbins, Brent Terwilliger, David Ison, Dennis Vincenzi

Publications

Expected revisions of federal policies and regulations for the operation and certification of small unmanned aircraft systems (sUAS) are anticipated to significantly increase the volume of traffic in the National Airspace System (NAS). By investigating critical needs of regulatory compliance and safety, as well as new advancements, it may be possible to identify strategies to address the most pressing concerns of sUAS integration. Findings and recommendations from this research are presented to highlight implications and possible solutions to urgent needs of UAS stakehold-ers, including industry, government, and academia.

Effects Of Automation On Aircrew Workload And Situation Awareness In Tactical Airlift Missions, David R. Meyer

Theses and Dissertations

In tactical aviation, decision superiority brought upon by high situation awareness remains the arbiter of combat effectiveness. The advancement of sophisticated avionics and highly automated cockpits has allowed for the reduction of aircrew size, and in certain platforms, removal of the crew from the aircraft entirely. However, these developments have not reduced the complex and dynamic interaction between situation awareness and crew workload. While many predictive and experimental methods of evaluating workload exist, situation awareness can only be measured by conducting trials with human operators in a functional prototype. This thesis proposes an innovative methodology to predicatively determine situation awareness …

Momentum Of Particles From Time-Of-Flight Measurements, Joseph Best

Senior Theses

In order to find the momentum of particles from time of flight measurements, I used a program called Geant4 to simulate experiments. I made a simple two detector setup, and I recreated a real world experiment. I spent a lot of time learning to code in C++ so I could use Geant4 correctly. I simulated these experiments shooting electrons, muons, and pions through the geometry and measured the time at two points in their flight. Subtracting the second time from the first gave me the time of flight distribution for each particle. I used ROOT to draw histograms of the …

Comparison Of Shareholder Value Between Full-Service Airlines (Fsas) And Low-Cost Carriers (Lccs)., William Kee

Honors Theses

Shareholders in the airline industry invest in a service industry that is met with high fixed costs, capital, and external factors such as customer satisfaction and fluctuations in crude oil prices. On one end of the airline spectrum in the United States lie the full-service airlines, such as Delta Air Lines, American Airlines, or United Airlines adopting a product differentiation approach to capture a competitive advantage by providing greater benefits, comfort, and experience to the customer. This approach attracts customers that value the experience more so than simply the price of the fare, but is often met with high operating …

Benefits Of Air Transportation Vs Ground Transportation In The Medical Field, Mackenzie Carpenter

University Honors Program

opic: Benefits of air transportation vs ground transportation in the medical field Research questions: 1. Is there a greater outcome for patients transported by air? 2. Is there a difference in access to equipment for ground and air runs? 3. Since the collaboration of Lifeline, has there been a better survival rate and patient satisfaction?

High Speed Jet Turbine Test Final Report, Kenneth Enstrom, Cameron Naugle, Isaac Thomas, Cody Lee

Mechanical Engineering

At high flight altitudes and speeds, external airplane elements are subject to immense loads. External devices must be put through testing that simulates these loads to ensure safety of the device. Our system will subject a device in need of testing to a jet of air, similar to wind seen on the surface of an airplane. The High Speed Air Jet Turbine Test project team has been tasked to design, build, and test an apparatus capable of acquiring real world flight data for micro-ram air turbines (microRAT). The micro-RAT is a device that provides power to an electrical device by …

Review Of Aviation Research: A Content Analysis Of Articles Published In The Collegiate Aviation Review, 2007–2012, Safak Aktemur

Theses and Dissertations

The purpose of the study was to conduct a content analysis of the methodological quality of articles published in the Collegiate Aviation Review (CAR)” a refereed journal of the University Aviation Alliance (UAA)”to determine if actual practices of aviation researchers were consistent with commonly recommended research methods and procedures. The accessible population consisted of the 76 articles published in CAR between 2007 and 2012 (Volumes 25“30). The sample consisted of N = 69 articles and excluded literature reviews, meta-analyses, studies that described the development or validation of an instrument, philosophical inquiries, position papers, or historical studies. The analysis focused on …

An Integrated Framework For Fostering Human Factor Sustainability And Increased Safety In Aviation Ramp Operations, Sarah M. Hubbard, Denver Lopp

Journal of Aviation Technology and Engineering

The aviation work environment has one of the highest accident rates of any industry sector in the United States, resulting in significant costs for both employee injuries and equipment damage. In fact, injury rates exceed rates found in areas that are widely recognized as hazardous, such as construction and mining, and it is estimated that aircraft ground damage costs are as high as 5 billion to 10 billion dollars per year. Purdue University’s Aviation Technology Department has conducted numerous safety and human factors studies in the past decade encompassing maintenance and repair operations, corporate flight departments, and over ten major …

Tailwinds Can Reduce Groundspeed Too, Nihad E. Daidzic

Aviation Department Publications

FAA Safety Seminar (GL1565666) held at Minnesota State University, Mankato Ostranger Auditorium at 18:30 CST on Monday, November 30, 2015.

Improving The Integration Of Launch And Reentry Operations Into The National Airspace System, Gwendolyn Mazzotta, Daniel P. Murray

Space Traffic Management Conference

With increasing commercial space activities occurring in the National Airspace System, the FAA has identified a need for more efficient management of the NAS with respect to commercial space operations. Current methods for integration of aviation and space activities employ a segregation approach, in which hazard areas are constructed around launch and reentry operations and sections of airspace are closed to other users. Mission objectives and vehicle characteristics dictate the extent of the closure in terms of location, duration, and volume of airspace affected. Launches, reentries, and other operations have an effect on other NAS stakeholders, causing delays, changes to …

Safe Operations Above Fl600, Lt. Col. Stephen Hunter

Space Traffic Management Conference

Safe Operations Above FL600

Abstract

With the increase in likelihood of near-term development of revenue-generating point-to-point suborbital flights and the increase in high-altitude-long-endurance commercial operations above FL600, the criticality of addressing operations above class A airspace has never been more pressing. While the Federal Aviation Administration describes the National Airspace System, it doesn’t offer a description that includes a top. Technological, physiological, physical and administrative limitations have relegated most air operations to FL600 and below. As that changes, previous work on Space Traffic Management (STM) concepts begin to take on new life and add to sincere considerations for adaptation or …

Evaluating Launch Vehicle / Reentry Vehicle (Lv/Rv) Separation Concepts, Zheng Tao, Ganghuai Wang, Tudor Masek, Thomas J. St. Clair

Space Traffic Management Conference

Launch Vehicle/Reentry Vehicle (LV/RV) operations are expected to increase across the National Airspace System (NAS) as their reliability and availability improve. LV/RV designs and the industry landscape have vastly changed since the 1960’s, and the Federal Aviation Administration’s (FAA) methods for handling these operations need to evolve to support the expected growth. Currently, large amounts of airspace are segregated for every LV/RV operation. This increases costs for NAS users and may limit LV/RV opportunities. The FAA’s NextGen office recently proposed two more efficient separation concepts for LV/RV operations called Space Transition Corridors, and Four-Dimensional Trajectory Deconfliction. Prior safety research for …

Flight Physician - November, 2015, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A twenty-one page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

Identifying Secondary Crashes By Using Geographic Information System (Gis) And Determining The Secondary Crashes Characteristics, Yuan Tian

Doctoral Dissertations and Master's Theses

As the nation’s transportation infrastructure expands, traffic incidents led to more than 25% of traffic congestion in the United States (FHWA, 2014). The risk of the occurrence of secondary crashes can be six times higher in the presence of a primary crash than that at a normal traffic condition (Yang et al., 2013 and Tedesco, 1994). The purpose of this study is 1) to develop a method to identify the secondary crashes with the primary incidents in Geographic Information Systems (GIS) under different spatial-temporal criteria, and 2) to determine the impacts of spatial-temporal criteria on the secondary crash characteristics in …

The Impact Of The First Officer Qualification Ruling: Pilot Performance In Initial Training, Nancy R. Shane

Journal of Aviation Technology and Engineering

The intent of the First Officer Qualification (FOQ) ruling was to improve the quality of first officers flying for Part 121 carriers. In order to test this, a study was completed at a regional carrier to compare pilots hired prior to the FOQ ruling with those hired after the FOQ ruling. The study compared 232 pilots hired from 2005–2008 with 184 pilots hired from August 2013–November 2014. The pilots’ date of hire as compared to the date the FOQ ruling went into effect defined the input (Source) variable. Initial training defined the output (Success) variables. The airline name and all …

Extending Gr While Moving Up To Supersonic Speeds Poses Challenges Requiring Innovations, Nihad E. Daidzic

Aviation Department Publications

Achieving true global range requires new ideas in lightweight aircraft structures, progress in transonic and supersonic aerodynamics and breakthroughs in low-SFC propulsion.

A Forecasting Tool For Predicting Australia's Domestic Airline Passenger Demand Using A Genetic Algorithm, Panarat Srisaeng, Glenn Baxter, Steven Richardson, Graham Wild

Research outputs 2014 to 2021

This study has proposed and empirically tested for the first time genetic algorithm optimization models for modelling Australia’s domestic airline passenger demand, as measured by enplaned passengers (GAPAXDE model) and revenue passenger kilometres performed (GARPKSDE model). Data was divided into training and testing datasets; 74 training datasets were used to estimate the weighting factors of the genetic algorithm models and 13 out-of-sample datasets were used for testing the robustness of the genetic algorithm models. The genetic algorithm parameters used in this study comprised population size (n): 200; the generation number: 1,000; and mutation rate: 0.01. The modelling results have shown …