But this flight, which will make human history, is very difficult. Because aerodynamic flight on Mars is far more difficult than on Earth. The red planet’s gravity is only 1/3 that of Earth’s, and the atmosphere is only 1% as dense as Earth’s surface. What’s worse, the surface of Mars receives only about half the solar energy of Earth during the day, and the temperature at night can drop to -90 degrees Celsius, a low temperature that ordinary electrical components cannot withstand. In order to build a helicopter that can fly on Mars, the U.S. NASA Jet Propulsion Laboratory spent seven years of design and manufacturing and testing. In order to realize the Mars flight, the research and design team specially built a wind tunnel to simulate the Mars atmospheric conditions and gravitational force to carry out simulation experiments. It is reported that the “Jiji” has been in the simulation environment on Earth for a number of flight experiments, can take off in the real Martian environment, but still have to wait for the final first flight.
From Mars to send back photos, from the “Trail” abdomen released to the surface of Mars, “Jiji”, as if just out of the mother’s care of the baby. The ground control team at NASA’s Jet Propulsion Laboratory will be waiting to hear from “Jiji” to see if it can survive Mars on its own. whether it can survive the Martian night on its own, whether the solar panels are working properly and to check whether its temperature and charging performance are as expected. If everything is OK, then the next step is to unlock the rotors and test all motors and sensors before the anticipated Mars flight test. Before the maiden flight, Perseverance will receive the final flight instructions from NASA Jet Propulsion Laboratory mission controllers and pass them on to the Smart. Several other factors will determine the precise timing of the first flight, including the wind and wind speed near the takeoff airport. “Once the wit’s propeller reaches 2,537 rpm, and if all self-tests look good, the wit will take off. The “Jiji” will climb at a speed of 1 meter per second and hover for 30 seconds at 3 meters above the ground. Then, it will descend and land on the surface of Mars, completing its first flight. During the course of the flight, Perseverance will act as a “spectator” to record the entire flight. After the maiden flight, Trailblazer will transmit the flight footage from its own camera and the first set of engineering data recorded by KIC itself to NASA’s Jet Propulsion Laboratory, which will determine whether the maiden flight was successful. Over the next two days, all remaining engineering data collected during the flight, low-resolution black-and-white images from the helicopter’s own camera, and two images from the high-resolution color camera will be transmitted back. The next flight test. It is said that the “resourceful” will complete a total of five flight tests in 31 days, after which the historic mission will end. “The Trail rover will also “abandon” the Rover to conduct its own exploration activities, looking for evidence of the possible presence of microbes on Mars and collecting samples.
“Bobby Braun, director of NASA’s Jet Propulsion Laboratory’s Planetary Science Division, believes that if humans can rely on airborne science on Mars with its thin atmosphere, they can certainly do so on many other planets in the solar system, such as Titan or Venus. , powered flight is real and powerful in the future of space exploration.
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