Let's play - guess the energy source?...

by shawnlin - 11/14/06 1:45 PM

http://www.flightglobal.com/Articles/2006/11/14/Navigation/196/210523/Northrop+reveals+ultra-UAV+plans.html

Northrop Grumman plans to create an high-altitude "ultra-Unmanned Aerial Vehicle (UAV)" that runs on some undisclosed "future fuel" source - it's not solar and may not be hydrogen fuel cells eitherit's even MORE futuristic than those two so.what could it be?

Hmmmmmmmm...
--Shalin