Abstract: An unmanned air vehicle includes a body having front and rear sections with at least one pair of end plates connected to the body, wherein one end plate within the at least one pair of end plates is connected to the left side of the body and another end plate within the at least one pair of end plates is connected to the right side of the body, each end plate having upper and lower sections, wherein: a) the upper section is positioned above a mean line of the body; b) the lower section is positioned below the mean line of the body; and c) a ratio of the area of the upper section to the area of the lower section is less than 1.

Abstract: A system is provided for guarding a perimeter, including a control center, a launch system, a controller and a communication system. The control center is configured for generating a control signal responsive to receiving infiltration information of an actual or suspected infiltration at a target zone associated with the perimeter by one or more infiltration agents. The launch system is configured for deploying one or more ready-to-launch UAV's to the target zone responsive to receiving the control signal from the control center. The controller is configured for operating the launched UAV(s) to home onto at least one such infiltration agent. The controller is also configured for identifying the nature of the infiltration agent or the nature of infiltration; and/or for tracking the infiltration agent via the UAV(s).

Abstract: The present invention relates to an unmanned air vehicle (105), comprising a body having front (121) and rear (122) sections with at least one pair of end plates (110) connected to said body, wherein one end plate within said at least one pair of end plates is connected to the left side of said body and another end plate within said at least one pair of end plates is connected to the right side of said body, each end plate having upper and lower sections (111,112), wherein: a) said upper section is positioned above a mean line of said body; b) said lower section is positioned below said mean line of said body; and c) a ratio of the area of said upper section to the area of said lower section is less than 1.