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

Ground Cue UI

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.