Engine Fan Component

EngineFanComponent inspector.

Simulates cooling fan or air induction noise that varies with engine RPM. Volume increases quadratically with RPM, while pitch increases linearly.

Commonly used for commercial vehicles, off-road vehicles with clutch-driven fans, or to add air intake/induction noise to the engine sound.

Properties

  • Base Pitch: Starting sound pitch at idle RPM (default: 1.0)
  • Pitch Range: Additional pitch added at maximum RPM. At redline, pitch = basePitch + pitchRange
    • Lower values (0.2-0.5) suit cooling fans
    • Higher values (1-2) work better for induction noise

Audio Setup

  • AudioSource is positioned at the engine location (Settings > Engine Position)
  • Automatically plays/stops with engine state
  • Volume scales with RPM² for realistic fan speed simulation