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What does the "RTH at current altitude" does?
3534 18 2019-1-6
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twentythrill
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Australia
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I would like to know precisely what this function do please, thank you in advance!
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2019-1-6
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zappy54
First Officer
Flight distance : 446900 ft
United Kingdom
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I twentythrill it means whatever altitude you are flying at is the altitude it will come back home at hope this helps.
2019-1-7
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jacksonnai
Captain
Malaysia
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When you press the RTH button/disconnected it will fly back home points at the current altitude that the drone is staying
2019-1-7
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skyhighmedia
First Officer
Flight distance : 740577 ft
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Norway
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Normally the drone will ascend to a set altitude if RTH is triggered. "RTH at current altitude" can be useful in situation where the drone is following an object downhill.
2019-1-7
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A CW
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United Kingdom
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Not quite - if the drone is within a 20m radius of the homepoint it will land if this is not enabled. If enabled it will return home at its current altitude if within the 20m radius. If further than 20m it will follow the normal RTH procedure and ascend to the preset RTH altitude.
2019-1-7
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A CW
Captain
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United Kingdom
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This is from the manual
2019-1-7
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Vendex
First Officer
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Bulgaria
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A CW Posted at 1-7 07:57
Not quite - if the drone is within a 20m radius of the homepoint it will land if this is not enabled. If enabled it will return home at its current altitude if within the 20m radius. If further than 20m it will follow the normal RTH procedure and ascend to the preset RTH altitude.

Absolutely correct ;)
2019-1-7
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Gunship9
Captain
United States
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I return at current altitude if there are trees or other cliff things above that I don't want it climbing into if it decides to RTH.  It can be 300 yards out and I want it to come straight home or at least give me a moment to cancel the RTH.  Depends on where the obstacles you want to avoid are during RTH.
2019-1-7
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A CW
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Gunship9 Posted at 1-7 09:10
I return at current altitude if there are trees or other cliff things above that I don't want it climbing into if it decides to RTH.  It can be 300 yards out and I want it to come straight home or at least give me a moment to cancel the RTH.  Depends on where the obstacles you want to avoid are during RTH.

Enabling return at current altitude will not return at current altitude if the Mavic is more than 20m away when RTH is activated - it will return at the preset RTH altitude you set in the app. Enabling return at current altitude stops the drone from immediately landing if within 20m of you - for example this is not something that would be ideal if you took off from a beach and flew over the sea...
2019-1-7
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twentythrill
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Australia
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A CW Posted at 1-7 07:57
Not quite - if the drone is within a 20m radius of the homepoint it will land if this is not enabled. If enabled it will return home at its current altitude if within the 20m radius. If further than 20m it will follow the normal RTH procedure and ascend to the preset RTH altitude.

Correct! You are the first one to be right in this post, as you can see from the comments behind your, there`s a lot of confusion about this function.
2019-1-7
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A CW
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twentythrill Posted at 1-7 14:05
Correct! You are the first one to be right in this post, as you can see from the comments behind your, there`s a lot of confusion about this function.

It is understandable why many would be confused - the line in the app should state "RTH at current altitude if within 5m-20m of the home point" - that would make it much clearer. It's not major but if pilots do not understand it then their Mavic 2 Pro could end up auto landing 20m away into a river or the sea because of say a low battery RTH and their being confused about this function and switching it off.
2019-1-7
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Eclair29
lvl.3
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Cambodia
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A CW Posted at 1-7 08:00
This is from the manual
[view_image]

Which manual is this from?
For Mavic Air, manual version 1.2 (2018.05) the description is different for 5-20m distance:
"2.b. If the aircraft is between 5m and 20m from the HP, it flies to the HP at the current altitude, unless the current altitude is less than 2.5m, in which case the aircraft ascends to 2.5m and then flies to the HP."

For the Mavic Air, the option "RTH at current altitude" is not described.
Then there is this:
"Failsafe RTH will be automatically activated if the RC signal is lost for a specified amount of time (3 seconds when using the RC, and 20 sec when flying with a mobile device). "

3 seconds is very short to try to re-connect by changing position, readjusting the antennaes, restarting the RC or the app...

Like this post if you wish that 3 second window could be extended!
2019-1-10
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A CW
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Eclair29 Posted at 1-10 20:34
Which manual is this from?
For Mavic Air, manual version 1.2 (2018.05) the description is different for 5-20m distance:
"2.b. If the aircraft is between 5m and 20m from the HP, it flies to the HP at the current altitude, unless the current altitude is less than 2.5m, in which case the aircraft ascends to 2.5m and then flies to the HP."

Mavic 2 Pro
2019-1-11
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Eclair29
lvl.3
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Cambodia
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For a MAVIC AIR, can anybody confirm / challenge the following behaviors after a connection lost?


Especially the case #17 when the drone is in the 5-20m zone and the "RTH at current altitude" option is off.
I believe this is what landed my drone in the water when it decided to land immediately after a lost connection.

I will do these tests after DJI replaces my drone...

PS: below HP (neg.) means the drone is at a negative altitude compared to the Home Point. Like when it is going downhill.
2019-1-12
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HH1
First Officer
Flight distance : 12808 ft
United States
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A CW Posted at 1-7 07:57
Not quite - if the drone is within a 20m radius of the homepoint it will land if this is not enabled. If enabled it will return home at its current altitude if within the 20m radius. If further than 20m it will follow the normal RTH procedure and ascend to the preset RTH altitude.

Thank you for that bit of knowledge, sure helps.
2019-1-12
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HH1
First Officer
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United States
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A CW Posted at 1-7 08:00
This is from the manual
[view_image]

Thanks for putting that up, does help.
2019-1-12
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HH1
First Officer
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A CW Posted at 1-7 14:12
It is understandable why many would be confused - the line in the app should state "RTH at current altitude if within 5m-20m of the home point" - that would make it much clearer. It's not major but if pilots do not understand it then their Mavic 2 Pro could end up auto landing 20m away into a river or the sea because of say a low battery RTH and their being confused about this function and switching it off.

Good that is pointed, and yes, it is easy for some of us to get confused
2019-1-12
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A CW
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HH1 Posted at 1-12 21:58
Thank you for that bit of knowledge, sure helps.

You're welcome
2019-1-13
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A CW
Captain
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United Kingdom
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HH1 Posted at 1-12 22:04
Good that is pointed, and yes, it is easy for some of us to get confused

Hopefully they'll add something to help clarify it in a FW update. At least you now know anyway.
2019-1-13
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