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  • 1
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    Helicopter Pilot Performance for Discrete-maneuver Flight Tasks (1984)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: This paper describes a current study of several basic helicopter flight maneuvers. The data base consists of in-flight measurements from instrumented helicopters using experienced pilots. The analysis technique is simple enough to apply without automatic data processing, and the results can be used to build quantitative matah models of the flight task and some aspects of the pilot control strategy. In addition to describing the performance measurement technqiue, some results are presented which define the aggressiveness and amplitude of maneuvering for several lateral maneuvers including turns and sidesteps.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: NASA. Ames Research Center 20th Ann. Conf. on Manual Control, Vol. 1; p 223-232
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    A comparison of landing maneuver piloting technique based on measurements made in an airline training simulator and in actual flight (1981)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: An emphasis is placed on developing a mathematical model in order to identify useful metrics, quantify piloting technique, and define simulator fidelity. On the basis of DC-10 flight measurements recorded for 32 pilots, 13 flight-trained and the remainder simulator trained, a revised model of the landing flare is hypothesized which accounts for reduction of sink rate and perference for touchdown point along the runway. The flare maneuver and touchdown point adjustment can be described by a pitch attitude command pilot guidance law consisting of altitude and vertical velocity feedbacks. In flight pilots exhibit a significant vertical velocity feedback which is essential for well controlled sink rate reduction at the desired level of response (bandwidth). In the simulator, however, the vertical velocity feedback appears ineffectual and leads to substantially inferior landing performance.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: JPL Proc. of the 17th Ann. Conf. on Manual Control; p 223-234
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    A pilot in the loop analysis of helicopter acceleration/deceleration maneuvers (1982)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Helicopter flight acceleration/deceleration maneuvers are quantified and put to use in the fields of handling qualities, flight training and evaluation of simulator fidelity. The three specific cases include the normal speed change maneuver, the nap-of-the-Earth dash/quickstop, and the decelerating approach to hover. All of these maneuvers share common generic features in terms of pilot adaptation and mathematical description; yet each differs in terms of the essential feedback loop structure, implications for handling qualities requirements, and simulator fidelity criteria.
    Keywords: AIR TRANSPORTATION AND SAFETY
    Type: NASA. Ames Research Center Helicopter Handling Qualities; p 221-232
    Format: application/pdf
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  • 4
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    Training aircraft design considerations based on the successive organization of perception in manual control (1982)
    In:  Other Sources
    Details
    Publication Date: 2016-06-07
    Description: The thesis that pilot skill development in the Navy approach and landing task is very strongly tied to the aircraft closure rate and, therefore, that pilot training for this task should be based on an appropriate progression closure rate is considered. A rational and explicit determination of design point approach speeds as well as other important aerodynamic features for training aircraft is also considered. Two keys are discussed: recognition of the significance of transitioning from a purely compensatory control loop technique to one involving a pursuit crossfeed between throttle and pitch attitude, and addressing the terminal flight path adjustment in terms of range-to-go.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: NASA. Ames Research Center 16th Ann. Conf. on Manual Control; p 119-126
    Format: text
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  • 5
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    The analysis of delays in simulator digital computing systems. Volume 1: Formulation of an analysis approach using a central example simulator model (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The effects of spurious delays in real time digital computing systems are examined. Various sources of spurious delays are defined and analyzed using an extant simulator system as an example. A specific analysis procedure is set forth and four cases are viewed in terms of their time and frequency domain characteristics. Numerical solutions are obtained for three single rate one- and two-computer examples, and the analysis problem is formulated for a two-rate, two-computer example.
    Keywords: COMPUTER OPERATIONS AND HARDWARE
    Type: NASA-CR-152340 , STI-TR-1140-1-VOL-1
    Format: application/pdf
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  • 6
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    A STOL airworthiness investigation using a simulation of an augmentor wing transport. Volume 2: Simulation data and analysis (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A simulator study of STOL airworthiness was conducted using a model of an augmentor wing transport. The approach, flare and landing, go-around, and takeoff phases of flight were investigated. The simulation and the data obtained are described. These data include performance measures, pilot commentary, and pilot ratings. A pilot/vehicle analysis of glide slope tracking and of the flare maneuver is included.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TM-X-62396 , AD-A006602 , FAA-RD-74-179-VOL-2 , A-5798
    Format: application/pdf
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  • 7
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    A study of key features of the RAE atmospheric turbulence model (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A complex atmospheric turbulence model for use in aircraft simulation is analyzed in terms of its temporal, spectral, and statistical characteristics. First, a direct comparison was made between cases of the RAE model and the more conventional Dryden turbulence model. Next the control parameters of the RAE model were systematically varied and the effects noted. The RAE model was found to possess a high degree of flexibility in its characteristics, but the individual control parameters are cross-coupled in terms of their effect on various measures of intensity, bandwidth, and probability distribution.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-CR-152194 , STI-TR-1126-1
    Format: application/pdf
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  • 8
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    Functional requirements for the man-vehicle systems research facility (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The NASA Ames Research Center proposed a man-vehicle systems research facility to support flight simulation studies which are needed for identifying and correcting the sources of human error associated with current and future air carrier operations. The organization of research facility is reviewed and functional requirements and related priorities for the facility are recommended based on a review of potentially critical operational scenarios. Requirements are included for the experimenter's simulation control and data acquisition functions, as well as for the visual field, motion, sound, computation, crew station, and intercommunications subsystems. The related issues of functional fidelity and level of simulation are addressed, and specific criteria for quantitative assessment of various aspects of fidelity are offered. Recommendations for facility integration, checkout, and staffing are included.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-CR-166315 , NAS 1.26:166315 , TR-1156-3
    Format: application/pdf
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  • 9
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    Technical approaches for measurement of human errors (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Human error is a significant contributing factor in a very high proportion of civil transport, general aviation, and rotorcraft accidents. The technical details of a variety of proven approaches for the measurement of human errors in the context of the national airspace system are presented. Unobtrusive measurements suitable for cockpit operations and procedures in part of full mission simulation are emphasized. Procedure, system performance, and human operator centered measurements are discussed as they apply to the manual control, communication, supervisory, and monitoring tasks which are relevant to aviation operations.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-CR-166314 , NAS 1.26:166314 , STI-TR-1156-2
    Format: application/pdf
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  • 10
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    A STOL airworthiness investigation using a simulation of an augmentor wing transport. Volume 1: Summary of results and airworthiness implications (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A simulator study of STOL airworthiness criteria was conducted using a model of an augmentor wing transport. The approach, flare and landing, go-around, and takeoff phases of flight were investigated. The results are summarized and possible implications with regard to airworthiness criteria are discussed. The results provide a data base for future STOL airworthiness requirements and a preliminary indication of potential problem areas. The results are also compared to the results from an earlier simulation of the Breguet 941S. Where possible, airworthiness criteria are proposed for consideration.
    Keywords: AERODYNAMICS
    Type: NASA-TM-X-62395 , AD-A005878 , FAA-RD-74-179-VOL-1 , A-5797-VOL-1
    Format: application/pdf
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