Moving Base Simulation of an ASTOVL Lift-Fan Aircraft
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Moving Base Simulation of an ASTOVL Lift-Fan Aircraft

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  • Creators:
  • Corporate Creators:
    Ames Research Center
  • Subject/TRT Terms:
  • DOI:
  • Resource Type:
    Tech Report
  • NTL Classification:
    NTL-AVIATION-AVIATION
  • Abstract:
    Using a generalized simulation model, a moving-base simulation of a lift-fan

    short takeoff/vertical landing fighter aircraft was conducted on the Vertical

    Motion Simulator at Ames Research Center. Objectives of the experiment were to

    (1)assess the effects of lift-fan propulsion system design features on aircraft

    control during transition and vertical flight including integration of lift

    fan/lift/cruise engine/aerodynamic controls and lift fan/lift/cruise engine

    dynamic response, (2)evaluate pilot-vehicle interface with the control system

    and head-up display including control modes fro low-speed operational tasks

    and control mode/display integration, and (3)conduct operational evaluations of

    this configuration during takeoff, transition, and landing similar to those

    carried out previously the the Ames team for the mixed-flow, vectored thrust,

    and augmentor-ejector concepts. Based on results of the simulation,

    preliminary assessments of acceptable and borderline lift-fan and lift/cruise

    engine thrust response characteristics were obtained. Maximum pitch, roll,

    and yaw control power used during transition, however, and vertical landing

    were documented. Control and display mode options were assessed for their

    compatibility with a range of land-based and shipboard operations frrom takeoff

    to cruise through transition back to hover and vertical landing. Flying

    qualities were established for candidate control modes and displays for

    instrument approaches and vertical landings aboard an LPH assault ship and

    DD-963 destroyer. Test pilot and engineer teams from the Naval Air Warfare

    Center, Boeing, Lockheed, McDonnell Douglas, and the British Defence Research

    Agency participated in the program.

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