Editing Unmanned aerial vehicle (section)

===Degree of autonomy===
Drones can also be classified based on the degree of autonomy in their flight operations. ICAO classifies unmanned aircraft as either remotely piloted aircraft or fully autonomous.<ref name="Percepto Drones">{{cite web |last1=Drones |first1=Percepto |title=The Differences Between UAV, UAS, and Autonomous Drones |url=https://percepto.co/what-are-the-differences-between-uav-uas-and-autonomous-drones/ |website=Percepto |date=3 January 2019 |access-date=18 February 2020 |archive-date=18 February 2020 |archive-url=https://web.archive.org/web/20200218072255/https://percepto.co/what-are-the-differences-between-uav-uas-and-autonomous-drones/ |url-status=live }}</ref> Some UAVs offer intermediate degrees of autonomy. For example, a vehicle may be remotely piloted in most contexts but have an autonomous return-to-base operation. Some aircraft types may optionally fly manned or as UAVs, which may include manned aircraft transformed into manned or Optionally Piloted UAVs (OPVs). The flight of UAVs may operate under remote control by a human operator, as '''remotely piloted aircraft''' ('''RPA'''), or with various degrees of [[Vehicular automation|autonomy]], such as [[autopilot]] assistance, up to fully autonomous aircraft that have no provision for human intervention.<ref name="ICAO">{{cite book |last1=Cary |first1=Leslie |url=http://uvs-info.com/phocadownload/05_3a_2011/P112-P115_C&AI_ICAO-Advisory-Circular.pdf |title=2011–2012 UAS Yearbook – UAS: The Global Perspective |last2=Coyne |first2=James |publisher=Blyenburgh & Co |pages=112–115 |contribution=ICAO Unmanned Aircraft Systems (UAS), Circular 328 |access-date=26 February 2022 |archive-url=https://web.archive.org/web/20160304025432/http://uvs-info.com/phocadownload/05_3a_2011/P112-P115_C%26AI_ICAO-Advisory-Circular.pdf |archive-date=4 March 2016}}</ref><ref>{{cite journal |last1=Hu |first1=J. |last2=Lanzon |first2=A. |date=2018 |title=An innovative tri-rotor drone and associated distributed aerial drone swarm control |url=https://www.sciencedirect.com/science/article/pii/S0921889017308163 |journal=Robotics and Autonomous Systems |volume=103 |pages=162–174 |doi=10.1016/j.robot.2018.02.019}}</ref>