How did the first flying saucer made by the earth people come true?

In order to make the spacecraft land on Mars safely and effectively, it has always been one of the technical problems that NASA engineers have failed to overcome. Recently, they prepared a new technology-supersonic aerodynamic reducer at the Jet Propulsion Laboratory in Pasadena, California. It can help aircraft carrying heavy objects land safely on Mars. Recently, it will be transported to the base in Hawaii for the second test flight.

Experts pointed out that this kind of flying saucer-like device is called "supersonic inflatable pneumatic reducer" or "SIADs" for short. It is the largest of its kind in the world at present, with a width of 3 1 m. The main purpose of this device is to detect the fuselage jitter caused by unbalanced load. Once the sloshing is found, the device can automatically inject something into the appropriate part of the edge of the plane, restore the balance and help the plane land safely, which is also the key to this test.

In addition, the design of SIADs matches the edge of the entrance vehicle. When the aircraft rushes into the atmosphere of the target planet, SIADs will automatically inflate, increasing the surface area and resistance of the aircraft in contact with the atmosphere and slowing down the landing speed. In addition to slowing down, NASA also hopes to transport more things at a time with the help of SIADs. After all, last time Mars was not easy.

It is understood that a similar balloon-assisted test was conducted in Kwai Ai Island last June. Results The test found that the lander was almost torn to pieces at the moment of separation even if there was no problem in the operation of the reducer. Therefore, engineers from NASA revised the design and strengthened some components.

According to foreign reports, the whole experiment takes about 2 hours 15 minutes. First, the "UFO" device will "take off" at the US Navy's Pacific missile range and be taken to an altitude of 37,000 meters by a huge weather balloon. This step alone takes about 2 hours. After that, the balloon was separated from the "flying saucer" and sent to an altitude of about 55 kilometers by a booster rocket at a high speed of 4 times the speed of sound. At this time, the air bags around the flying saucer began to inflate, and the descending speed of the flying saucer was slowed down by increasing the atmospheric resistance. After that, the "supersonic parachute" equipped on the "flying saucer" will also be deployed.

At present, the LDSD aircraft is in the final preparation stage. Recently, if weather conditions permit, it will be transported to Kauai, where the US Pacific missile range is located in the Hawaiian Islands, for the second test flight.