overview :

remotely piloted unmaned vehicle


global hawk : 13 tons total weight / 35m wingspan
              42 hours endurance
              1.5 ton payload
              operating at 65,000 feet
	      cruise 345 kts
              50/70 millions $ each
	      	

predator :   1 ton total weight / 12m wingspan
	     endurance 24 hours
             payload < 250kg
             ceiling 25,000 feet
             cruise : 70kts 
             2/3 millions $ each


raven : 2 kg total weight
        80 min endurance
        payload - ~200g
	ceiling 15 feet
        cruise 25 - 50 kts
        35k$ each, 250$ system