Boeing’s drive to fill out its unmanned aircraft systems (UAS) portfolio continues, with the aerospace giant’s HorizonX Ventures arm participating in a $5 million funding round at Kittyhawk, a provider of software for managing commercial drone fleets. The San Francisco-based startup has now raised $6.5 million, with the latest round led by Bonfire Ventures and including Freestyle Capital, Kluz Ventures and existing investor The Flying Object, a global drone venture fund. The ...