1. Aerospace and Safety Initiative. (2019) Facts, stats and incidents: Latest infringement statistics [Online]. UK. Available:
https://airspacesafety.com/facts-stats-and-incidents/
[Accessed 04/02/2019 2019].
2. Civil Aviation Authority United Kingdom. (2016) Aircraft Register Statistics: UK registered aircraft by class and weight group, multi-year 1985–2016. Available from:
https://www.caa.co.uk/Data-and-analysis/Aircraft-and-airworthiness/Datasets/Aircraft-register-statistics/
[Accessed 11/21 2016].
3. Endsley, M. R. (2010). Situation awareness in aviation systems. In J. Wise, V. Hopkin, & D. Garland (Eds.), Handbook of Aviation Human Factors (2nd ed., pp. 1–12). USA: CRC Press.
4. European Aviation Safety Agency. (2016) Licensing for General Aviation Pilots and Mechanics. Available from:
https://www.easa.europa.eu/easa-and-you/general-aviation/licensing-general-aviation
[Accessed 11/21 2016].
5. General Aviation Manufacturers Association (GAMA). (2018) 2017 Annual Report.