About: http://webisa.webdatacommons.org/19482467

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Conversely, some aircraft, and in particular rotorcraft, do not need such an electrical power supply device to be installed permanently.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com