After the Perseverance rover landed smoothly and began to prepare for the journey, the next exciting project was the “Witty” helicopter carried under its belly. NASA earlierExplains the test plan of witty, The release procedure is expected to begin on April 8.
First of all, Perseverance will put the Wit down on a flat area of 10m x 10m. The process of putting down the Wit can take as long as six days, which also includes cutting the fixed cables with small explosives. After that, Perseverance will slowly retreat from the location of Wiz, allowing Wiz to be charged with its solar panels. After being fully charged, the Gizwits will begin a 31-day test plan, starting from hovering at a height of 3 meters for 30 seconds, and continuing to a relatively long-distance flight.
So far, NASA has only conducted tests in vacuum chambers on Earth, but the environment of sparks is undoubtedly much harsher. In addition to dust, the temperature at night may be as low as -90 degrees Celsius. For small helicopters Components such as batteries and motors are a challenge.However, the original purpose of the witty number was to demonstrate the new technology, just like the size of a microwave oven in 1997SojournerStep by step, it has developed into the Perseverance that is the size of an SUV today. Perhaps the small Wit is also a pioneer among a series of increasingly larger Martian helicopters.