NGC plans to make Global Hawk airborne for 7 days with in-flight refueling Posted on March 11, 2011 by alert5 Northrop Grumman plans to keep the Global Hawk UAV airborne for seven continuous days using in-flight refueling. Related posts (Automatically Generated): Northrop Grumman confirms talks with Japan for Global Hawks KQ-X – Global Hawks to buddy refuel NGC demonstrates close formation flight for KQ-X South Korea’s plans to buy Global Hawk stolen by Chinese hackers First production MP-RTIP delivered to USAF Global Hawk flies on alternative fuel mixture for 32 hours