Free Republic

A new drone which flies almost silently without wings or propellers has raised questions about how many supposed UFO sightings might actually be man-made craft. The Silent Ventus drone, made by Florida-based start-up Undefined Technologies, uses ion propulsion, with electrodes ionizing the air to generate thrust, and flies incredibly quietly. It can also hover in the air against winds - a feature of many UFO sightings by military personnel. The hi-tech drones may possibly explain sightings such as the famous 'Tic Tac' drone sighting, where pilots spotted a craft resembling the breath mint performing impossible maneuvers during a training mission...