Nasa’s Mars chopper goes farther, faster

NEW YORK: NASA’s mini helicopter Ingenuity on Sunday successfully completed its third flight on Mars, moving farther and faster than ever before, with a peak speed of two metres per second.

After two initial flights during which the craft hovered above the Red Planet’s surface, the helicopter on this third flight covered 50 metres of distance, reaching the speed of two metres per second in this latest flight.

“Today’s flight was what we planned for, and yet it was nothing short of amazing,” said Dave Lavery, the Ingenuity project’s program executive.

The Perseverance rover, which carried the 1.8kg rotorcraft to Mars, filmed the 80-second third flight. NASA said on Sunday that video clips would be sent to Earth in the coming days.

The lateral flight was a test for the helicopter’s autonomous navigation system, which completes the route according to information received beforehand. “If Ingenuity flies too fast, the flight algorithm can’t track surface features,” NASA explained in a statement about the flight.

Ingenuity’s flights are challenging because of conditions vastly different from Earth’s foremost among them a rarefied atmosphere that has less than 1% the density of our own.

This means that Ingenuity’s rotors, which span four feet, have to spin at 2,400 revolutions per minute to achieve lift - about five times more than a helicopter on Earth.

NASA announced it is now preparing for a fourth flight.