NASA’s Mars helicopter’s third flight goes farther, faster than before

Published April 26, 2021, 6:55 AM

by Agence-France-Presse

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 6.6 feet per second.

This NASA photo shows NASA’s Ingenuity Mars Helicopter(C) seen hovering during its third flight on April 25, 2021, as seen by the left Navigation Camera aboard NASA’s Perseverance Mars Rover. – NASA’s Ingenuity Mars Helicopter continues to set records, flying faster and farther on April 25, 2021 than in any tests it went through on Earth. (Photo by Handout / NASA/JPL-Caltech / AFP)

After two initial flights during which the craft hovered above the Red Planet’s surface, the helicopter on this third flight covered 64 feet (50 meters) of distance, reaching the speed of 6.6 feet per second (two meters per second), or four miles per hour 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 four-pound (1.8 kilograms) rotorcraft to Mars, filmed the 80-second third flight. NASA said 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 one percent 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. Each flight is planned to be of increasing difficulty in order to push Ingenuity to its limits.

The Ingenuity experiment will end in one month in order to let Perseverance return to its main task: searching for signs of past microbial life on Mars.

 
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