It Went, It Conquered, It Came Home: 
The prototype Global Hawk unmanned aerial vehicle, designated Air Vehicle No. 3, first sent to Southwest Asia in 2002 should arrive back at Edwards AFB, Calif., on Feb. 20. The Air Force has operated the prototype in the global war on terror for more than four years, during which time it amassed 4, 245 combat flying hours. It has been replaced by production model Global Hawks.
The KC-Z4, a blended wing body tanker concept being developed by startup JetZero, could fuel larger groups of aircraft at longer range to hold more targets at risk, company officials say.