About: http://webisa.webdatacommons.org/36257564

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	On some aircraft such as the Canadair Regional Jet (CRJ), the APU is also used for the main source of bleed air for pressurizing the cabin during takeoff & landing.
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net