|video2=[http://www.youtube.com/watch?v=toTWhPTyqg8&feature=player_embedded Hydraulic-powered robotic arm showing human interface gripper (ver2)] ''YouTube''
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Developed by the laboratory ''Hydraulic Human Power Extender'' is a tool with a carrying capacity of is 500 pounds, intended to help loading and unloading aircrafts.Two sets of piezoelectric force sensors measure forces for arbitrary force augmentation and force reflection in the machine while the six axes of this extender are controlled three on-board microcomputers.<ref>{{cite web|title=Hydraulic Human Power Extender|url=http://bleex.me.berkeley.edu/research/hydraulic-power-extender/|publisher=University of California, Berkeley|accessdate=31 January 2012}}</ref>
