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  • 1
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    Piloted simulation study of two tilt-wing control concepts (1994)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: A two-phase piloted simulation study was conducted to investigate alternative wing and flap controls for tilt-wing aircraft. The initial phase of the study compared the flying qualities of both a conventional (programmed) flap and an innovative geared flap. The second phase of the study introduced an alternate method of pilot control for the geared flap and further studied the flying qualities of the programmed flap, and two geared flap configurations. In general, the pilot rating showed little variation between the programmed flap and the geared flap control concepts. Some differences between the two concepts were noticed and are discussed in this paper. The addition of pitch attitude stabilization in the second phase of the study greatly enhanced the aircraft flying qualities. This paper describes the simulated tilt-wing aircraft and the flap control concepts and presents the results of both phases of the simulation study.
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: 1993 Technical Paper Contest for Women. Gear Up 2000: Women in Motion; p 1-12
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Piloted simulation study of two tilt-wing flap control concepts, phase 2 (1994)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A two phase piloted simulation study has been conducted in the Ames Vertical Motion Simulator to investigate alternative wing and flap controls for tilt-wing aircraft. This report documents the flying qualities results and findings of the second phase of the piloted simulation study and describes the simulated tilt-wing aircraft, the flap control concepts, the experiment design and the evaluation tasks. The initial phase of the study compared the flying qualities of both a conventional programmed flap and an innovative geared flap. The second phase of the study introduced an alternate method of pilot control for the geared flap and further studied the flying qualities of the programmed flap and two geared flap configurations. In general, the pilot ratings showed little variation between the programmed flap and the geared flap control concepts. Some differences between the two control concepts were noticed and are discussed in this report. The geared flap configurations had very similar results. Although the geared flap concept has the potential to reduce or eliminate the pitch control power requirements from a tail rotor or a tail thruster at low speeds and in hover, the results did not show reduced tail thruster pitch control power usage with the geared flap configurations compared to the programmed flap configuration. The addition of pitch attitude stabilization in the second phase of simulation study greatly enhanced the aircraft flying qualities compared to the first phase.
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: NASA-TM-108817 , A-94072 , NAS 1.15:108817
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Ski jump takeoff performance predictions for a mixed-flow, remote-lift STOVL aircraft (1992)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A ski jump model was developed to predict ski jump takeoff performance for a short takeoff and vertical landing (STOVL) aircraft. The objective was to verify the model with results from a piloted simulation of a mixed flow, remote lift STOVL aircraft. The prediction model is discussed. The predicted results are compared with the piloted simulation results. The ski jump model can be utilized for basic research of other thrust vectoring STOVL aircraft performing a ski jump takeoff.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TM-103866 , A-91156 , NAS 1.15:103866
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Aerodynamics model for a generic ASTOVL lift-fan aircraft (1995)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This report describes the aerodynamics model used in a simulation model of an advanced short takeoff and vertical landing (ASTOVL) lift-fan fighter aircraft. The simulation model was developed for use in piloted evaluations of transition and hover flight regimes, so that only low speed (M approximately 0.2) aerodynamics are included in the mathematical model. The aerodynamic model includes the power-off aerodynamic forces and moments and the propulsion system induced aerodynamic effects, including ground effects. The power-off aerodynamics data were generated using the U.S. Air Force Stability and Control Digital DATCOM program and a NASA Ames in-house graphics program called VORVIEW which allows the user to easily analyze arbitrary conceptual aircraft configurations using the VORLAX program. The jet-induced data were generated using the prediction methods of R. E. Kuhn et al., as referenced in this report.
    Keywords: AERODYNAMICS
    Type: NASA-TM-110347 , A-950051 , NAS 1.15:110347
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Phase II simulation evaluation of the flying qualities of two tilt-wing flap control concepts (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A simulation study was initiated to investigate alternative wing and flap controls for tilt-wing aircraft. The initial phase of the study compared the flying qualities of both a conventional (programmed) flap and an innovative geared flap. The second phase of the study, reported in this paper, introduced an alternate method for pilot control of the geared flap and further studied the flying qualities of the programmed flap, and two geared flap configurations. The results showed little difference among the three flap control configurations except during a longitudinal reposition task where the programmed flap configuration was the best. The addition of pitch attitude stabilization greatly enhanced the aircraft handling qualities. This paper describes the tilt-wing aircraft and the flap control concepts, and presents the results of the second simulation experiment.
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: SAE PAPER 920988 , SAE, Aerospace Atlantic Conference; Apr 07, 1992 - Apr 10, 1992; Dayton, OH; United States|; 14 p.
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Piloted simulation study of two tilt-wing control concepts (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A two phase piloted simulation study was conducted to investigate alternative wing and flap controls for tilt-wing aircraft. The initial phase of the study compared the flying qualities of both a conventional (programmed) flap and an innovative geared flap. The second phase of the study introduced an alternate method of pilot control for the geared flap and further studied the flying qualities of the programmed flap, and two geared flap configurations. In general, the pilot ratings showed little difference between the programmed flap and the geared flap control concepts, although differences between the two control concepts were noticed and are discussed in this paper. The addition of pitch attitude stabilization in the second phase of the study greatly enhanced the aircraft flying qualities. This paper describes the simulated tilt-wing aircraft and the flap control concepts, and presents the results of both the first and second phases of the piloted simulation study.
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: AIAA PAPER 92-4236 , ; 15 p.|AIAA, Aircraft Design Systems Meeting; Aug 24, 1992 - Aug 26, 1992; Hilton Head Island, SC; United States
    Format: text
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    NASA TECHNICAL REPORTS
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