A terrain disruption device includes an air or gas flow generation device mounted on a remote operated vehicle having an extendible arm, wherein the air or gas flow generation device includes an elongate (optionally detachable) ducting arrangement to direct the air or gas flow and an optional nozzle. The air or gas flow generation device and/or the elongate ducting arrangement may be mounted on the extendible arm. Preferably, the air or gas flow generation device is powered by a fan, more preferably an electric ducted fan.

Unmanned aerial vehicles and methods for providing the same are disclosed. The unmanned aerial vehicles may have various configurations related to a support frame. The unmanned aerial vehicles may have various configurations with a continuous track for ground propulsion. The unmanned aerial vehicles may have various configurations related to payload clamps.

Unmanned aerial vehicles and methods for providing the same are disclosed. The unmanned aerial vehicles may have various configurations related to a support frame. The unmanned aerial vehicles may have various configurations with a continuous track for ground propulsion. The unmanned aerial vehicles may have various configurations related to payload clamps.