London, UK (SPX) Apr 13, 2010 – Northrop Grumman has launched the latest enhanced version of its industry-leading Wheelbarrow unmanned ground vehicle for the remote handling and surveillance of hazardous threats. The Wheelbarrow Mk9 vehicle, designed, developed and manufactured by Northrop Grumman in the UK, includes significant advances in technology and performance and a range of new features that will improve its capabilities for both civil security and defence applications.