So I just got off the phone with DJI, I purchased a new Mavic Air 2 yesterday and was out testing this morning. This is my first advanced drone but I have been flying advanced RC for years. I noticed my Mavic will not ascend to the RTH set Altitude before heading to the home point. I set it for 100' and the drone was only about 20' off the ground and when I went to use RTH it did not climb it just started flying straight to the home point at the 20' height. So DJI is claiming that the new firmware will no longer let the drone ascend it will only fly straight to the Home Point, they claimed that if you are above that preset RTH height that it will now descend if your about it. This is the total opposite of all the videos and demos I have watched. They said that this went in to effect about 2 months ago. Has anyone else experienced this?
DJI Claims Mavic Air 2 will no longer ascend on RTH
- Thread starter WernerGarage
- Start date
Just checking - was the ground under the drone 80' above the home point?
The 100' RTH is relative to the home point not AGL
First, welcome to the forum ?
Then ... really doubt that DJI person knew what he was talking about. The last version of the downloadable user manual is dated 2020-12-30 & in that below is stated ...
You have 3 different scenarios depending on how far you are from the recorded HP ...
You can download the manual here --> https://dl.djicdn.com/downloads/Mavic_Air_2/Mavic_Air_2_User_Manual_v1.4_en.pdf
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maintenanceguy
Well-Known Member
Seems like such a change would cause a lot of drone crashes. I'm hoping you were within 50m of home (see blue above) when this happened and that DJI is not changing that feature.
Unfortunately DJI's "help" people are a great source of confusion and misinformation and cannot be relied on for accurate information.
Perhaps there was some confusion about the Power Saving RTH feature that is new with the Air 2.
See p14 of your manual for the correct information and do some testing to see how it works in practice.
There's nothing wrong with using the RTH feature.
It's very reliable, but users need to test it to familiarise themselves with what it does and how it does it.
Can anyone confirm whether or not the forward facing obstacle avoidance does work during this 5 to 50m RTH?
I am not certain how to interpret the manual and whether it suggests obstacle avoidance is only active in failsafe.
With regards to the power saving RTH if it is available does it really 'leave' the drone at 200m above the home point? i.e. well above most legal ceilings etc.etc.
I am not certain how to interpret the manual and whether it suggests obstacle avoidance is only active in failsafe.
With regards to the power saving RTH if it is available does it really 'leave' the drone at 200m above the home point? i.e. well above most legal ceilings etc.etc.
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I can't think of a reason why it would NOT be functioning in every RTH, in fact I think it is daft if it is NOT functioning during every RTH but, since the manual describes it after the BOLD Falisafe heading, I am uncertain as to whether it is applicable to Failsafe ONLY.
It's not an area where misinterpretation is safe, hence my seeking clarification.
To my mind, if it is applicable to all RTH, its description should have been placed before the various features of the different types of RTH were described.
The item in the manual is titled:
Obstacle Avoidance During RTH
Not .. Obstacle Avoidance Only During a Specific Part of the RTH Procedure
Relax .. DJI's design engineers are a lot smarter than the phone help people.
I'm not sure if anyone has really tested this, as you have to be more at a height more than 290m above the home point, which, as noted, unless flying up a hill or mountain, isn't legal in most places. That said, there is no reason to think it won't work exactly as the manual explains. DJI's documentation is sometimes lacking, but is not usually entirely incorrect (unlike the support agents). So, you get a little bit of descent instead of none in non-power-save RTH.
I don't know if this helps, the January 26, 2021 firmware update release notes that the December 28, 2020 firmware update made this change... "If the aircraft is at a distance of 5 m to 50 m from the Home Point when RTH is initiated, the aircraft adjusts its orientation and flies to the Home Point at the current altitude."
From the DJI download page
Mavic Air 2 - Download Center - DJI
Learn and download Mavic Air 2 related apps, software, and manuals at the DJI Download Center
bmwbob
Well-Known Member
If you go on YouTube you can see the update demonstrated. Aldryn Estasio on Flytpath follows all the updates and does demos and explainations of all the Mavic changes.
I saw a YouTube video about that. I think oi its close to you it won't ascend. I can't remember how many ft away it has to be before it will ascend before RTH
I believe it depends entirely how far the drone if from with you when you initiate the RTH command. I have seen some more detail on this RTH command.
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