September 11th, 2001 was a day that affected everyone. The world came to a stop. The aviation industry was affected, and the national airspace system was closed for a few days. The events that occurred on that specific day enacted changes that affect the industry to this day. This paper analyzes some of the changes that were made and discusses some of the changes the industry is going through again, about 20 years after the events on September 11th. The coronavirus pandemic has changed the way we all live our daily lives and aviation is not exempt. Changes to aircraft cleaning procedures, boarding processes, and seat design have all been ways the industry has gone through changes. The results of a potential recovery as well as the long-term changes are discussed.
Mission aviation groups operate aircraft in areas with limited infrastructure. Existing airdrop methods pose significant risk due to their lack of steerability. This thesis details the development of Manna, a system built to address these concerns. Manna provides an automated, low cost, safe steerable delivery platform, through a custom designed parafoil and guidance unit. Flight tests and simulations show that Manna can provide a safer alternative for critical air deliveries.
Mission aviation groups operate aircraft in areas with limited infrastructure. Existing airdrop methods pose significant risk due to their lack of steerability. This thesis details the development of Manna, a system built to address these concerns. Manna provides an automated, low cost, safe steerable delivery platform, through a custom designed parafoil and guidance unit. Flight tests and simulations show that Manna can provide a safer alternative for critical air deliveries.
Pilot suicide has been a topic that has seen increased discussion in the past decade, Aviation regulating bodies have introduced antidepressant programs to aid in reducing the harm depression and other mental illnesses cause pilots. These programs are varied in their structure however they all revolve around SSRI medications. The FAA HIMS SSRI program for American pilots issues a pathway that is long in duration and can place undue stress on pilots that choose to participate. This has led to high rates of under-reporting and non-treatment of mental illnesses in pilots.
The objective of this thesis is to conduct a case study into the Bell X-2, an early supersonic research aircraft utilizing a modern perspective and computational tools. The Bell X-2 was the second in a series of supersonic research aircraft created by Bell Aviation Corporation, designed to help engineers to explore this new region of flight. The goal of the X-2 was to gather data on high Mach Number and high-altitude flight as well as aerodynamic heating. The X-2 had poor lateral stability resulting in it being unstable at high Mach Numbers and moderate angles of attack. The program was full of new and unforeseen technical challenges resulting in many delays and tragedies. The program ended when stability problems resulted in a fatal crash destroying the aircraft and killing the test pilot. This case study addresses the historical background of the program, human influence, the stability problems encountered and conducting a stability analysis of the aircraft. To conduct the stability analysis, the potential flow solver, VORLAX, was used to gather aerodynamic coefficient data of the X-2 and determine if these stability problems could be determined from the data obtained. By comparing the results from VORLAX to a wind tunnel study, I determined that the poor lateral directional stability and control coupling issues were foreseeable in the initial design.
