About: http://webisa.webdatacommons.org/405562832

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	The IBC method needs a rotating system including high-capacity hydraulic actuators for moving the rotor blades individually on a mast, which unavoidably increases the weight and makes the mast assembly complicated.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com