Abstract: A system for homing and recharging an unmanned vehicle comprises a plurality of homing layers operative along the radius of an imaginary circle that has the homing target at its center, each homing layer consisting of a sub-system provided with location means of increasing accuracy relative to that of a sub-system that operates along said radius farther away, from the center of said circle.

Abstract: A landing platform for a hovering vehicle comprises an erectable and retractable boundary element which, when in erected position, defines a substantially closed volume.

Abstract: A centering system for positioning an Unmanned Autonomous Vehicle (UAV) is provided with two or more supporting extremities rigidly connected thereto, comprising a pair of displaceable positioning elements provided with surfaces sloped relative to each other, which create trapping areas such that when said positioning elements are caused to move one relative to the other, said two or more supporting extremities are caused to be trapped in said trapping areas.

Abstract: A payload exchange facilitating connector module, comprises: a) a structure secured to a payload; b) a locking member operatively connected to said structure! c) a locking initiating element that is settable in force transmitting relation with said locking member! and d) two guiders configured to urge an interface element of two different external positioning components, respectively, to undergo linear and non-rotatable relative motion exclusively with respect to said structure, until said locking initiating element is set in force transmitting relation with said locking member to cause said locking member to become coupled with a dedicated element of a first of said positioning components, or following decoupling of said locking member from said dedicated element to facilitate payload exchange.

Abstract: A system for homing and recharging an unmanned vehicle comprises a plurality of homing layers operative along the radius of an imaginary circle that has the homing target at its center, each homing layer consisting of a sub-system provided with location means of increasing accuracy relative to that of a sub-system that operates along said radius farther away, from the center of said circle.