The fourth test flight of the US Mars helicopter failed to take off as planned

witty任务小组的成员说，在地球上的测试表明，修复计划大约85%的时间是有效的。同样的问题可能会出现在29号，刚好遇到15%的不幸几率。但在机智的任务小组进行必要的分析之前，我们无法获得更多的信息。

Members of the witty mission team said that tests on earth showed that the repair plan was effective about 85% of the time. The same problem may appear on the 29th, which just meets the 15% chance of misfortune. But we won't be able to get more information until the witty mission team does the necessary analysis.

今年2月18日，机智而有毅力的火星探测器降落在耶泽洛陨石坑，那里曾是古代一个大型湖泊和河流三角洲。4月3日，意志力通过腹部释放智慧，开始为飞行做准备。这项活动的目的是表明在火星上进行空气探测是可能的。

On February 18 this year, wit and willpower Mars rover landed in yezelo crater, where there used to be a large lake and River Delta in ancient times. On April 3, willpower released wit through her abdomen and began to prepare for her flight. The purpose of this activity is to show that air exploration on Mars is possible.

截至目前，smart已于4月19日、22日和25日进行了3次飞行。这些飞行已经变得越来越雄心勃勃，wit在4月25日的80秒飞行中，以每小时7.2公里的最高速度飞行330英尺（约100米）。

So far, the smart has carried out three flights on April 19, 22 and 25. These flights have become increasingly ambitious, with the wit flying 330 feet (about 100 meters) at a top speed of 7.2 kilometers per hour in an 80 second flight on April 25.

JPL在一份声明中说，smart已经"达到或超过了它的所有技术目标"。本月早些时候，它开始了在另一颗行星上的首次控制动力飞行，直到第三次创造了新的速度纪录。

In a statement, JPL said the smart had "met or exceeded all of its technical objectives.". Earlier this month, it began its first controlled powered flight on another planet, until the third set a new speed record.

第四次飞行的目的是进一步突破这些限制。美国航天局官员说，最新计划要求"智能"号在5米高空飞行872英尺（266米），快速飞越地面，并收集下面岩石、沙子和小陨石坑的图像，最高时速13公里，在高空停留117秒。

The purpose of the fourth flight is to further break through these limits. NASA officials said the latest plan requires the smart to fly 872 feet (266 meters) at an altitude of 5 meters, fly quickly over the ground and collect images of rocks, sand and small craters below, with a maximum speed of 13 kilometers per hour and stay at high altitude for 117 seconds.

机智的飞行窗口即将结束。从4月3日部署之日起一个月内，wit就有5次飞行机会，因为在那之后，意志力需要集中精力完成核心任务，包括寻找火星上早已消失的生命迹象，以及为将来返回地球收集样本。

The flight window for the wit is coming to an end. Within a month from the date of its deployment on April 3, wit has five flight opportunities, because after that, willpower needs to focus on its core tasks, including searching for signs of life on Mars that have long disappeared, and collecting samples for future return to earth.

目前尚不清楚smart能否在预期时间内完成所有5次飞行，但其任务团队成员表示，他们将尽最大努力实现这一目标。

It's not clear if the smart will be able to complete all five flights within the expected time, but members of its mission team have said they will do their best to achieve this goal.

然而，即使smart再也不能飞行了，成功的测试可能会给其他行星的研究带来新的维度。"我们现在可以考虑在未来的火星探测任务中安排空中探测，这可能会给科学任务带来更多的附加能力，"美国宇航局行星科学部主任洛里·格拉斯（腾讯科技审校/金路）说

However, even if the smart can never fly again, the successful tests may bring new dimensions to the study of other planets. "We can now consider arranging air exploration in future Mars exploration missions, which may bring more additional capabilities to science missions," said Lori glaze, director of NASA's Planetary Science Division（ Tencent technology reviser / Jinlu)

Link：https://new.qq.com/omn/20210430/20210430A023EW00.html

update time：2021-04-30 14:44:57