Ground Cue

Overview

The Ground Cue provides specialized motion cueing optimized for ground operations in aircraft simulations. It works in conjunction with the Primary Cue, automatically transitioning between ground-based and airborne motion profiles based on the aircraft's altitude.

Key features:

  • Dedicated motion profile for ground operations (taxi, takeoff, landing)

  • Smooth transition between ground and air motion profiles

  • Configurable altitude-based blending

  • Aircraft-specific (not active for other vehicle types)

  • Requires valid altitude telemetry data from simulation

Controls

Altitude Settings

  • Ground Altitude: Set this to match the reported altitude when aircraft is on the ground

    • Check "Source Data" display while on runway to determine correct value

    • Some simulators report non-zero altitudes for ground level

  • Air Altitude: Defines height at which Primary Cue takes full control

    • Motion smoothly transitions between Ground/Primary profiles between these altitudes

Axis Controls

Each motion axis has identical controls to the Primary Cue:

  • Enable/Disable: Toggle individual axis activity

  • Link to Primary: Inherit settings from Primary Cue profile

  • Isolate: Temporarily disable all other axes for focused tuning

  • Smoothness: Filter strength

  • Washout: Return-to-center speed

  • Gain: Motion intensity multiplier

Tuning Tips

Initial Setup

  1. Set Ground Altitude first:

    • Park aircraft on runway

    • Check Source Data altitude reading

    • Set Ground Altitude to match

  2. Set Air Altitude:

    • Recommended 10-50m above Ground Altitude

    • Larger difference = more gradual transition

    • Smaller difference = quicker transition

Ground Profile Tuning

  1. Start with Primary Cue settings

  2. Modify for ground operations:

    • Reduce gains for smoother taxi

    • Increase smoothness to dampen runway bumps

    • Adjust washout for better brake/acceleration feel

Testing

  1. Test full takeoff sequence:

    • Ground handling

    • Rotation

    • Initial climb

  2. Verify smooth transition to Primary Cue

  3. Test landing sequence:

    • Approach

    • Touchdown

    • Rollout

Common Adjustments

  • Rough Ground Handling: Increase smoothness, reduce gains

  • Weak Brake Feel: Increase surge axis gain

  • Harsh Touchdown: Adjust heave axis smoothness

  • Poor Directional Feel: Fine-tune yaw/sway settings

Remember: Changes take effect in real-time, allowing immediate feedback during tuning.

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