Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 15 of 15

Full-Text Articles in Engineering

Improving The Integration Of Launch And Reentry Operations Into The National Airspace System, Gwendolyn Mazzotta, Daniel P. Murray Nov 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 Nov 2015

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 …


Comment On Faa Rule Revision - Transport Category Aircraft, Paul F. Eschenfelder, Valter Battistoni Nov 2015

Comment On Faa Rule Revision - Transport Category Aircraft, Paul F. Eschenfelder, Valter Battistoni

Paul F. Eschenfelder

No abstract provided.


Examining How Breakdowns In Pilot Monitoring Of The Aircraft Flight Path, Robert Sumwalt, David Cross, Dennis Lessard Aug 2015

Examining How Breakdowns In Pilot Monitoring Of The Aircraft Flight Path, Robert Sumwalt, David Cross, Dennis Lessard

International Journal of Aviation, Aeronautics, and Aerospace

Aircraft accident and incident data reveal that serious safety consequences can arise when flight crewmembers fail to properly monitor the aircraft flight path. This research study reviewed human factors literature to better understand why pilots fail to properly monitor, and analyzed accident and incident data. Recommendations for improving monitoring performance were formulated, which may be useful to air carriers in implementing a new Federal Aviation Administration requirement that calls for specific training in monitoring.


Bio-Fuel Alternatives In South African Airways (Saa) Operations - Is It An Effective Response To Vulnerability Over Carbon Taxes And Penalty?, Daniel Kwasi Adjekum Jul 2015

Bio-Fuel Alternatives In South African Airways (Saa) Operations - Is It An Effective Response To Vulnerability Over Carbon Taxes And Penalty?, Daniel Kwasi Adjekum

International Journal of Aviation, Aeronautics, and Aerospace

The paper did a comparative analysis of the carbon emission and European Union Emission Trading Surcharges (EU ETS) of South African Airways (SAA) current fleet that used aviation jet A1 fuel and the same fleet if it had used a 25% bio-fuel ‘drop in’ for the European routes within the first quarter of the 2014 flying year (FY 14). Operational data in terms of the flight scheduled, aircraft type, total time enroute, route stage length, passenger estimates were obtained through SAA’s flight operations website. An independent t–test was conducted to compare means of the emissions. The mean carbon dioxide …


Determination Of Factors That Influence Passengers’ Airline Selection: A Study Of Low Cost Carriers In Thailand, Thapanat Buaphiban Apr 2015

Determination Of Factors That Influence Passengers’ Airline Selection: A Study Of Low Cost Carriers In Thailand, Thapanat Buaphiban

Doctoral Dissertations and Master's Theses

This research examined the factors that influenced the airline selection of Low Cost Carriers (LCCs) in Thailand. The research was justified based on the rapid growth of LCC travel in Thailand, particularly in domestic and regional travel. There is a relative lack of successful explanation of the choice of LCCs in Thailand, with only a few studies addressing topics like passenger satisfaction and perceptions of service quality. Following an extensive literature review, the author used a theoretical framework based on the Theory of Planned Behavior (TPB) (Ajzen, 1991) in order to explain passenger behavioral intentions. This framework was supplemented by …


Efficient General Computational Method For Estimation Of Standard Atmosphere Parameters, Nihad E. Daidzic Ph.D., Sc.D. Mar 2015

Efficient General Computational Method For Estimation Of Standard Atmosphere Parameters, Nihad E. Daidzic Ph.D., Sc.D.

International Journal of Aviation, Aeronautics, and Aerospace

Knowledge of standard air temperature, pressure, density, speed of sound, and viscosity as a function of altitude is essential information in aircraft design, performance testing, pressure altimeter calibration, and several other aeronautical engineering and aviation science applications. A new efficient computational method for rapid calculations of standard atmospheric parameters up to 86 orthometric km is presented. Additionally, mass and weight of each standard atmospheric layer were calculated using a numerical integration method. The sum of all fractional masses and weights represents the total mass and weight of Earth’s atmosphere. The results obtained here agree well with measurements and models of …


Regional Aviation Early Career Pilot Attributes Study, Stewart Wayne Schreckengast, Douglas A. Drury Feb 2015

Regional Aviation Early Career Pilot Attributes Study, Stewart Wayne Schreckengast, Douglas A. Drury

International Journal of Aviation, Aeronautics, and Aerospace

The Regional Aviation Association of Australia (RAAA) has identified a need to better understand the concerns of its members in the attraction and retention of early career pilots. RAAA has further identified the need to better understand any shortcomings in professional aviation training programs in Australia so as to provide appropriate guidance from an industry point of view. The RAAA Training and Education Committee (TEC) facilitated the undertaking of this study with its members. This study provides insight into the technical and non-technical attributes that aviation manager’s value in early career pilots.


Assessing The Commercial Aviation Impact Of The Year 2000 Open Skies Agreements Between The United States And African Countries With Longstanding Flights, Tyler B. Spence, Micah Walala, Richard O. Fanjoy Jan 2015

Assessing The Commercial Aviation Impact Of The Year 2000 Open Skies Agreements Between The United States And African Countries With Longstanding Flights, Tyler B. Spence, Micah Walala, Richard O. Fanjoy

Aviation / Aeronautics / Aerospace International Research Conference

The U.S. started a comprehensive campaign towards Open Skies agreement in 1992. The major benefits of Open sky agreement are reported to include increase of passenger and cargo volume between partners. This study analyzes passenger traffic and cargo volume between six African countries that have had commercial aviation with the U.S. since 1990 to 2014, and with direct flights between them. Two of the countries have had no Open Skies agreement with the U.S., while four have had Open Skies agreement beginning in 2000. A multi linear modeling process was applied on the two categories to determine whether there is …


The Implementation Of Safety Management Systems In Maintenance Operations, Daniel H. Siao Jan 2015

The Implementation Of Safety Management Systems In Maintenance Operations, Daniel H. Siao

Aviation / Aeronautics / Aerospace International Research Conference

Literature for Safety Management Systems (SMS) that apply to flight operations is abundant, but there is a limited supply of SMS-related literature for maintenance operations. The FAA emphatically states on its website that safety is the “foundation of everything we do,” and this is reflected in the FAA Flight Plan, where the general tenor of this document is increasing safety. However, while there is ample mention of flight safety, there is no mention of maintenance-related safety in the FAA Flight Plan.

Even though the benefits of SMS are well established, it is difficult for maintenance facilities—especially small repair stations—to justify …


Aerospace Renaissance – Ripe For Research To Impact The Industry, Constantine M. Koursaris, Brig. Gen. Robert E. Mansfield Jr. (Ret.) Jan 2015

Aerospace Renaissance – Ripe For Research To Impact The Industry, Constantine M. Koursaris, Brig. Gen. Robert E. Mansfield Jr. (Ret.)

Aviation / Aeronautics / Aerospace International Research Conference

The Center for Aviation and Aerospace Leadership (CAAL) was founded in 2008 to capture, create, and share relevant information on leadership in the aviation and aerospace industry.

The AIR is developed and published in collaboration with the Aerospace Industries Association and includes:

• Information on the status of aerospace manufacturing in the United States and state of the economy

• An in-depth review of sales across the various sectors of the industry, employment trends, key international trade statistics, financial information on the industry & major aerospace firms, trends to watch, and a forecast for the future based on a review …


Unmanned Aerial Systems In The Fire Service: Concepts And Issues, John C. Griffith, Ronald T. Wakeham Jan 2015

Unmanned Aerial Systems In The Fire Service: Concepts And Issues, John C. Griffith, Ronald T. Wakeham

Aviation / Aeronautics / Aerospace International Research Conference

The presentation will summarize current thinking on the application of Unmanned Aerial Systems (UASs) in the Fire Service. Potential use of UASs to save lives, provide safety and save property has generated preliminary research in three major areas of the fire service to include aviation, structure and wildland scenarios. Roadblocks to the effective use of this technology will also be discussed to include possible command and control issues and governmental actions to limit the use of UASs due to aviation safety concerns. The presenters will recommend areas of future research and steps to implement this technology in the fire service. …


Human Factors Considerations In Autonomous Lethal Unmanned Aerial Systems, Kristine Kiernan Jan 2015

Human Factors Considerations In Autonomous Lethal Unmanned Aerial Systems, Kristine Kiernan

Aviation / Aeronautics / Aerospace International Research Conference

The United States military is committed to the development of complete autonomy in unmanned vehicles, including armed unmanned aerial systems (UAS). The design and deployment of autonomous lethal UAS raises ethical issues that have implications for human factors. System design, procedures, and training will be impacted by the advent of autonomous lethal UAS. This paper will define relevant vocabulary, review the literature on robot ethics as it applies to the military setting, discuss various perspectives in the research community, address levels of UAS autonomy, and discuss implications for operator training, responsibility, and human-machine interaction. Familiarity with these ethical issues and …


Unmanned Aerial Systems And Airport Master Plans, David S. Worrells, David C. Ison, Ken Witcher, D. Terwilliger Jan 2015

Unmanned Aerial Systems And Airport Master Plans, David S. Worrells, David C. Ison, Ken Witcher, D. Terwilliger

Aviation / Aeronautics / Aerospace International Research Conference

Investigative research study to establish best practices that may lead to a model for integrating UAS operations into airport master plans.

Qualitative, observational, and case analysis to determine best ways to incorporate UAS integration into the airport planning process, specifically airport master plans.


Is “Green Dot” Always The Optimum Engines-Out Glide Speed On The Airbus A320 Aircraft?, Kivanc A. Avrenli, Barry J. Dempsey Jan 2015

Is “Green Dot” Always The Optimum Engines-Out Glide Speed On The Airbus A320 Aircraft?, Kivanc A. Avrenli, Barry J. Dempsey

Journal of Aviation/Aerospace Education & Research

The dual-engine failure checklist of the Airbus A320 states that the optimum airspeed at which the aircraft can be flown is the “green dot” speed when an engine restart is considered impossible. This is because the “green dot” speed maximizes the power-off glide range in wings-level flight. However, it is not known whether the “green dot” speed would still be the optimum airspeed if the power-off landing maneuver primarily consists of sharp turns. The objective of this study is to find out the optimum power-off glide speed for the A320 if the emergency landing maneuver primarily requires sharp turns rather …