GLOBAL HAWK, Northrop-Grumman (NOC)
An advanced surveillance aircraft that can take radar and infrared pictures and stay aloft for more than 24 hours
PREDATOR, General Atomics
A surveillance drone that can produce high-quality video of ground action from 20,000 ft.
UCAVs, Boeing (BA)
Unmanned combat air vehicles that can carry up to 3,000 pounds of bombs and missiles
CANARD ROTOR/WING, Boeing
A pilotless high-speed attack helicopter that is still in development, it will provide reconnaissance, armed escort, and air support
Corrections and Clarifications
The table accompanying "Planes that know what to bomb" (Science & Technology, Nov. 12) should have said that Boeing UCAVs carry up to 3,000 pounds of bombs and missiles.