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A UAV That Perches And Stares
by James Dunnigan
December 28, 2008

Discussion Board on this DLS topic

The U.S. Army sent several dozen of its new MAVs (Micro Air Vehicles) to Iraq for testing, by troops, in a combat zone. MAV is a 13 pound helicopter, that is 13 inches in diameter. It can take off in winds of up to 27 kilometers an hour. It can operate when the winds are moving at up to 36 kilometers an hour. For an item that small and light, that's pretty good. Normally, MAV operates at between 10 and 500 feet altitude, but it can go as high as 10,000 feet. What makes the MAV particularly useful is not just its ability to "hover and stare", but also to set down anywhere, and "perch and stare" (thus saving battery power). The ducted fan propulsion system eliminates any rotors spinning around where they could hit anything. With an endurance of 40 minutes and a top speed of 80 kilometers an hour, the MAV can easily cover company or platoon level operations. For operations in an urban area, MAV is particularly effective. The MAV can't be heard by anyone 100 meters away, or less if buildings are in the way. The cameras show video that allows the operator (using a handheld controller/display) to identify people at 250 meters (during the day, 125 meters at night). A MAV system consist of two MAV vehicles, one controller, and spares (vidcams, batteries, etc). Takes a few hours of instruction to learn how to use. That includes how to program a predetermined flight path, using way points.

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