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  • AIRCRAFT STABILITY AND CONTROL  (2)
  • Research and Support Facilities (Air)  (2)
  • Spacecraft Design, Testing and Performance  (1)
  • 1
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    Analysis of aircraft performance during lateral maneuvering for microburst avoidance (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Aircraft response to a severe and a moderate three-dimensional microburst model using nonlinear numerical simulations of a Boeing 737-100 is studied. The relative performance loss is compared for microburst escape procedures with and without lateral maneuvering. The results show that the hazards caused by the penetration of a microburst in the landing phase are attenuated if lateral escape maneuvers are applied in order to turn the aircraft away from the microburst core rather than flying straight through. If the lateral escape maneuver is initiated close to the microburst core, high bank angles tend to deteriorate aircraft performance. Lateral maneuvering is also found to reduce the advanced warning required to escape from microburst hazards but requires that information of the existence and location of the microburst is available (i.e., remote detection) in order to avoid an incorrect turn toward the microburst core.
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: AIAA PAPER 90-0568
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Dynamic response of aircraft autopilot systems to atmospheric disturbances (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: Journal of Aircraft (ISSN 0021-8669); 26; 124-130
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Supporting the Future Air Traffic Control Projection Process (2002)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: In air traffic control, projecting what the air traffic situation will be over the next 30 seconds to 30 minutes is a key process in identifying conflicts that may arise so that evasive action can be taken upon discovery of these conflicts. A series of field visits in the Boston and New York terminal radar approach control (TRACON) facilities and in the oceanic air traffic control facilities in New York and Reykjavik, Iceland were conducted to investigate the projection process in two different ATC domains. The results from the site visits suggest that two types of projection are currently used in ATC tasks, depending on the type of separation minima and/or traffic restriction and information display used by the controller. As technologies improve and procedures change, care should be taken by designers to support projection through displays, automation, and procedures. It is critical to prevent time/space mismatches between interfaces and restrictions. Existing structure in traffic dynamics could be utilized to provide controllers with useful behavioral models on which to build projections. Subtle structure that the controllers are unable to internalize could be incorporated into an ATC projection aid.
    Keywords: Research and Support Facilities (Air)
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Multi-Agent Flight Simulation with Robust Situation Generation (1994)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: A robust situation generation architecture has been developed that generates multi-agent situations for human subjects. An implementation of this architecture was developed to support flight simulation tests of air transport cockpit systems. This system maneuvers pseudo-aircraft relative to the human subject's aircraft, generating specific situations for the subject to respond to. These pseudo-aircraft maneuver within reasonable performance constraints, interact in a realistic manner, and make pre-recorded voice radio communications. Use of this system minimizes the need for human experimenters to control the pseudo-agents and provides consistent interactions between the subject and the pseudo-agents. The achieved robustness of this system to typical variations in the subject's flight path was explored. It was found to successfully generate specific situations within the performance limitations of the subject-aircraft, pseudo-aircraft, and the script used.
    Keywords: Research and Support Facilities (Air)
    Type: ASL-95-2
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    A Distributed Simulation Facility to Support Human Factors Research in Advanced Air Transportation Technology (1998)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A distributed real-time simulation of the civil air traffic environment developed to support human factors research in advanced air transportation technology is presented. The distributed environment is based on a custom simulation architecture designed for simplicity and flexibility in human experiments. Standard Internet protocols are used to create the distributed environment, linking all advanced cockpit simulator, all Air Traffic Control simulator, and a pseudo-aircraft control and simulation management station. The pseudo-aircraft control station also functions as a scenario design tool for coordinating human factors experiments. This station incorporates a pseudo-pilot interface designed to reduce workload for human operators piloting multiple aircraft simultaneously in real time. The application of this distributed simulation facility to support a study of the effect of shared information (via air-ground datalink) on pilot/controller shared situation awareness and re-route negotiation is also presented.
    Keywords: Spacecraft Design, Testing and Performance
    Type: 1998 Fall Simulation Interoperability Workshop; Sep 13, 1998 - Sep 18, 1998; Orlando, FL; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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