- Stall sound source: from a Youtube video entitled "Stalling and spinning with a Cessna 152" by Morsule. License: CC-BY. Link: https://www.youtube.com/watch?v=zTq8Jvoks2U
- Parking brake sound source: from a sound file entitled "Old Lever Pull" by DrMinky. License: kindly allowed it to be used under under the CC0 license. Link: http://freesound.org/people/DrMinky/sounds/167048/
- Trim wheel sound source: from a sound file entitled "rubber.wav" by datasoundsample. License: kindly allowed it to be used under under the CC0 license. Link: http://freesound.org/people/datasoundsample/sounds/41631/
- Damage sound source: from a sound file entitle "QUICK_SMASH_003.wav" by JoelAudio. License: CC-BY. Link: http://freesound.org/people/JoelAudio/sounds/135463/
- Gyro sound source: youtube video entitled "Starting C172N" by algefaen. License: CC-BY. Link: https://youtu.be/gg3q002qsyI
- Repair sound source: from a sound file entitled "266626__producerdan__car-auto-mechanic-shop.wav" by producerdan. License: CC0. Link: https://freesound.org/people/producerdan/sounds/266626/download/
- Primer lever sound source: from a sound file entitled "262325__coltures__squeaky-car-door.wav" by coltures. License: CC0. Link: https://freesound.org/people/coltures/sounds/262325/
- Engine (regular, idle, start, cut off) sound source: from a sound file entitled "322321__jlwsound__small-plane-cessna-engine-start-idle-and-takeoff.wav" by JLWSound. License: CC0. Link: https://freesound.org/people/JLWSound/sounds/322321/
- Propeller blade model: adapted from a model by Syd Adams and Heiko Schulz (HHS81), used in the c182s project. GNU GPL V2.0. Link: https://github.com/HHS81/c182s/