Standard procedures to estimate en-route aircraft performance rely upon the “standard atmosphere”. Real-world conditions are then represented as deviations from the standard atmosphere. Both flight manuals and aircraft designers make heavy use of the “deviation method” to account for geographical and temperature differences in atmospheric conditions. This method is often done statically, choosing a single deviation based on temperature and a single wind speed for the duration of an entire mission.

Real-world atmospheric conditions have an incredible amount of variation throughout any given flight route, however. Changes in geographic location can present many changes within the atmosphere; they include differences in air temperature, humidity, wind speeds, wind directions, air densities, and more. Historically, these changes have not been accounted for in standard mission performance models. However, they present major possible impacts on real missions.

This thesis addresses this issue by developing a lateral and vertical mission simulation method that uses real-world and up-to-date atmospheric conditions to determine the effect of changing atmospheric conditions on en-route performance and economy. The custom toolset was used in combination with a series of trades over a series of five days and a representation of each season to show the variation that occurs on a single route over the course of daily and seasonal periods.

Both qualitative and quantitative effects from this perspective were recorded for the Airbus A320 and a student designed regional jet, the Aeris, to determine the effect of atmospheric variation on standard commercial transport and hypothetical high-altitude capable commercial transport. The variance presented by changing atmospheric conditions is massive and has large implications on future aircraft operations and design.

Due to large geographical and temporal variation in the wind speeds and directions, it is recommended that aircraft operators use daily measurements of atmospheric conditions to determine optimal flight paths and altitudes. Further investigation is recommended in terms of the effect of changing atmosphere for design, however from initial investigations it appears that a statistical method works well for incorporating the large variance added by real-world conditions.

The purpose of this research was to determine if students who are enrolled in a professional flight program exhibit significantly higher rates of depression, stress, and anxiety. This study compared professional flight students to non-professional flight students to determine whether professional flight students have higher rates of depression and anxiety. In addition, this study sought to determine if there were higher depression, anxiety, and stress levels in upperclassmen (juniors and seniors) than in lowerclassmen (freshman and sophomore). Finally, upperclassmen and underclassmen within professional flight programs were compared to test if upperclassmen professional flight students exhibit higher rates for depression, anxiety and stress. These groups were compared to each other by using a survey that measures depression, anxiety, and stress. There were no statistically significant results. No singular group is more or less prone to depression, anxiety, or stress.

Hypoxic hypoxia is a physiological condition which can manifest as a result of reduced barometric pressure, resulting in an insufficient amount of oxygen for use by the tissues in the body. Hypoxic hypoxia is of concern to pilots due to dangerous impairment the condition can cause in-flight, such as short term memory loss, incoordination, or incapacitation. Several aircraft incidents and accidents have been attributed to hypoxia in the past ten years. To train for hypoxia recognition, high altitude chambers are used to induce hypoxia in participants, through a reduction of pressure inside a reinforced chamber. The training allows participants to experience their personal physiological symptoms of hypoxia in a controlled environment, in order to be trained in recognition and intervention techniques. This study surveyed 110 participants of high altitude chamber training to analyze perceptions, experience, and attitudes of respondents toward the training. Significant results were found; to include 99% of participants stating they would recommend the training to others, and 96.8% stating they felt they were a safer pilot, crewmember, or other support personnel due to attending high altitude chamber training. Two questions related to formal regulatory oversight revealed non-significant results. The purpose and results of this study are intended to support the improvement of aviation physiological training practices, in an effort to reduce hypoxia-related aircraft incidents an accidents in the future.

Checklists have become a vital aspect of aviation, regardless of skill level. From general aviation pilots going through flight training to commercial airline pilots responsible for hundreds of lives every day, checklists are used from the moment you step into the cockpit until the last light that is turned off at the end of the flight. Checklists are such a significant part of aviation, and several different ways to run a checklist have been created (such as the challenge-response and do-and-tell methods). Despite these variations in checklist usage and procedures, all methods are restricted in terms of user involvement; in other words, pilots are not easily engaged or invested in the checklists that they use in day to day operations. Theorized through exposure to this issue as a student and as a Certified Flight Instructor, Know Go™ has been created as a long term tool to replace conventional checklists with a resourceful one that acts as both a normal checklist for daily use and a learning tool for long term retention. The purpose of this text is to introduce the capabilities of the application, as well as discuss the theories behind the effectiveness of the application. The developmental processes and the challenges associated with application production will also be analyzed.

The aviation industry is considered to be the safest when it comes to transportation of people and property. The standards by which companies provide air transportation are held are very high. Nevertheless, a shortage in the number of pilots exists and companies must look for ways to meet demands. One of the ways to resolve this issue is to introduce unmanned systems on a broader scale – to transport people and property. The public’s perception regarding this issue has not been well documented. This survey identified what the public’s attitude is towards the use of these systems. One hundred fifty-seven people participated in this survey. Statistical analyses were conducted to determine if participant demographics, previous aviation background, and comfort levels were significantly related to various transportation technologies. Those who were comfortable or uncomfortable with self-driving cars kept their same comfort level for other technologies such as drone delivery services. The survey also revealed that the vast majority of respondents did not feel comfortable being a passenger on fully autonomous aircraft. With an overwhelming percentage of society not comfortable with the idea of there being no pilot for the aircraft, it is important for companies working to implement this technology to pay close attention to the public perception of autonomous aircraft.

This thesis uses an aircraft aerodynamic model and propulsion data, which

represents a configuration similar to the Airbus A320, to perform trade studies to understand the weight and configuration effects of “out-of-trim” flight during takeoff, cruise, initial approach, and balked landing. It is found that flying an aircraft slightly above the angle of attack or pitch angle required for a trimmed, stabilized flight will cause the aircraft to lose speed rapidly. This effect is most noticeable for lighter aircraft and when one engine is rendered inoperative. In the event of an engine failure, if the pilot does not pitch the nose of the aircraft down quickly, speed losses are significant and potentially lead to stalling the aircraft. Even when the risk of stalling the aircraft is small, the implications on aircraft climb performance, obstacle clearance, and acceleration distances can still become problematic if the aircraft is not flown properly. When the aircraft is slightly above the trimmed angle of attack, the response is shown to closely follow the classical phugoid response where the aircraft will trade speed and altitude in an oscillatory manner. However, when the pitch angle is slightly above the trimmed condition, the aircraft does not show this phugoid pattern but instead just loses speed until it reaches a new stabilized trajectory, never having speed and altitude oscillate. In this event, the way a pilot should respond to both events is different and may cause confusion in the cockpit.

This paper documents the work completed as part of the graduation requirements from Barrett, The Honors College. My project focused on researching, organizing, and presenting information to other ASU aviation students for the purpose of guiding them in how to effectively search for internships. My internship experiences led to a full-time job offer and this project aims to help provide other aviation students with the same opportunities.

The Federal Flight Deck Officer (FFDO) program was mandated legislatively, as part of the Homeland Security Act of 2002. This study replicated earlier research that investigated pilots’ opinions of the current state of the FFDO program based on interviews. A Likert survey was created to allow simpler quantitative collection and analysis of opinions from large groups of pilots. A total of 43 airline pilots participated in this study. Responses to the Likert questions were compared with demographics, searching for significance through a Pearson chi-square test and frequencies were compared to earlier research findings. Significant chi-square results showed that those familiar with the program were more likely to agree the program should continue, it was effective, the screening and selection process of program applicants was adequate and the Federal Air Marshal Service’s management of the FFDO program was effective. Those with Military experience were more likely to disagree it was reasonable that FFDOs were required to pay for their own room and board during training or train on their own time. All those who shared an opinion agreed there should be a suggestion medium between FFDOs and their management. Unlike the prior study, all those familiar with the program agreed the weapons transportation and carriage procedures were adequate. Furthermore, all those who shared an opinion found the holster locking mechanism adequate, which was another reversal of opinion from the prior study. Similar to the prior study, pilots unanimously agree FFDOs were well trained and agreed that the program was effective and should continue.

Airports are a vital part of the United States' transportation infrastructure. A variety of factors impact the amount of aircraft that an airport can handle per hour. One of these factors is the runway capacity. Strict rules regarding the amount of separation required between two aircraft landing at the same airport and lack of available land limit the ways that airport managers and planners can tackle this problem. Research was conducted at the Arizona State University's Simulator Building using the Adacel Tower Simulation System. Modifications to the airport were then made to simulate the high speed exit. Testing utilized aircraft in the large category, including Airbus A320s, which are regularly seen at the airport. Airport capacity dramatically increased as a result. The previous AAR was 33. With the research conducted, aircraft can exit the runway between 27 and 30 seconds with final approach speeds ranging from 130 knots to 150 knots. To allow for a margin for safety, a 35 second runway occupancy time is used. With that rate, assuming that other separation standards are changed to accommodate that traffic level, the runway AAR increases to approximately 100. To reach this potential, changes to the FAAs separation requirements for aircraft on the same final approach course must be made, to allow aircraft to be closer together.

My project analyzes the air traffic control tower (ATCT) system of the Federal Aviation Administration (FAA) to determine if a rebalancing of ATCT ownership and operation should occur. The government currently faces a problem of a tight financial budget and sequestration, which often times means mandatory budget cuts. This project provides one possible solution for the FAA to save money in their budget without adversely affecting safety. The FAA could establish appropriate criteria to compare all ATCTs. The FAA could then apply these criteria in a policy that would contract the operation of certain low-level ATCTs and conversely handle the operations at high-activity ATCTs. Additionally, the FAA could include a policy to transfer the ownership of certain low-activity towers, but transfer the ownership of high-activity towers to the FAA. The research was completed by studying various documents from the FAA, Department of Transportation (DOT), and industry groups. Most of the data analysis was conducted by creating tables, queries, and graphs from FAA data. The FAA data was found on their Air Traffic Activity Data System (ATADS). From my data analysis, I was able to identify sixty-nine ATCTs that are currently operated by the FAA that could become federal contract towers (FCT) and forty-six FCTs that could be operated by the FAA. Each FCT saves the FAA approximately $1.488 million, so the FAA could save $34.2 million per year by implementing my solutions. I have also established sample criteria for determining which ATCTs could be maintained by the FAA.