2021-10-01

NASA confirmed that the 2800rpm propeller rotation test of ingenuity Mars helicopter was successful

By yqqlm yqqlm

NASA confirmed that the 2800rpm propeller rotation test of ingenuity Mars helicopter was successful </ P >

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p > one of the things NASA is doing is to increase the propeller rotor speed of ingenuity to 2800rpm. NASA has now confirmed that the 2800 RPM rotation test is successful. This rotation test is the first step in operating ingenuity in the coming months and weeks. The next step of the test will be a short hover at ingenuity’s current position, the rotor speed will drop to 2700 rpm, and then a short flight</ p>

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p > NASA completed the high-speed rotation test on the ground on September 15. One of the key details of that test was that NASA had to determine whether higher rotational speeds would cause any unexpected vibrations. The good news is that no vibration was detected. NASA expects to fly 2700 revolutions on September 18. However, the flight was cancelled after ingenuity detected a pair of steering gear abnormalities during the pre flight inspection and cancelled the flight</ P>

the problem of steering gear drives a mechanism called a swashplate to enable it to adjust the pitch and direction of the rotor in flight. These rudders are essential for stable flight. The pre flight test noted that just after the second step of the pre flight procedure, the swing of steering gears 1 and 2 was about one degree higher than their command position</ p>

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p > NASA has confirmed that the team is studying the anomaly and has conducted additional swing tests. One occurred on September 21 and the other on September 23. Both tests were successful. One theory is that after ingenuity flew twice as much as originally planned, the parts connected between the servo gearbox and the swashplate began to wear</ p>

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p > however, another theory is that the high-speed rotation test puts the rotor in a position where the servo parts 1 and 2 are loaded in a way that has not been encountered before. Due to solar activity, additional tests and possible higher rotor speed flights will not start until mid October</ p>