Northrop Grumman displays its UAVs outside Plant 42 in Palmdale, California.
The large wingspan aircraft in the back is the RQ-4A Global Hawk. In front of the Global Hawk, from left to right,
1 RQ-5 Hunter
2 X-47A UCAV
3 BQM-34E Firebee Aerial Target
4 BQM-74E Aerial Target
5 RQ-8A Fire Scout (VTUAV, or Vertical Tactical Unmanned Aerial Vehicle)
6 X-46 UCAV (partially shown in first photo.)