NASA/JPL-Caltech On its ambitious sixth flight, the Mars helicopter Ingenuity encountered an airborne navigation glitch that caused it to tilt back and forth while making unplanned velocity changes, but the small drone-like craft was still able to land safely, mission managers at Jet Propulsion Laboratory in Pasadena said today. The sixth flight of the history-making helicopter — the first to perform controlled flight on another world — was planned as one of its most daring excursions to date. The helicopter was programmed to travel a total of more than 700 feet, demonstrating its aerial photography skills by snapping stereo images of terrain to its west while it flew, then touch down in a new landing field.