Wind condition does not alter the failsafe RTH process. It would still do the same thing, and in this case it would most likely not be able to make it home, and instead be blown away.My setup in failsafe is RTH, the warning does say "unable to RTH automatically". So that would result in step 5 in my case if I was to experience both at the same time?
Couple of issues with that....'RTH cant return to home automatically' - it can IF you have it in sports mode .... IanFromLondon done a youtube video on just that but with a MA2 - not sure how different a mini would be ...
Wind condition does not alter the failsafe RTH process. It would still do the same thing, and in this case it would most likely not be able to make it home, and instead be blown away.
Best solution is to not get into that situation. Situational awareness and pre-flight planning would keep you from flying into such conditions...especially with a MM which is by any measure underpowered.
If you have to fight a headwind for your return flight, you might have already lost the battle.I always consult UAV forecast, before flying, but not sure what would be considered a safe condition for the MM to make sure it could fight a headwind on RTH.
Suggest you find and watch the MA2 video I mentioned then decide if that is relevant or not before just dismissing it ... was only trying to help ...Couple of issues with that....
- The MM does not have much power so even in sports mode, it is very easy to have a stronger headwind than the MM can handle.
- In Sports Mode you would need to fly it home yourself, which doesn't help you in cases where you lose signal.
- Unless something has changed recently, a RTH always uses a set speed/power setting (something akin to best cruise velocity in an airplane). So it does not matter what mode the MM was in before initiating RTH. it will always come home with the same power setting. *This of course would not be the case if it has changed recently in the firmware with the MM.
I was not dismissing it. I was just trying to give accurate information so that others don't get a false sense of security in thinking that they can just pop it into Sports Mode and get more success in RTH.Suggest you find and watch the MA2 video I mentioned then decide if that is relevant or not before just dismissing it ... was only trying to help ...
'RTH cant return to home automatically' - it can IF you have it in sports mode .... IanFromLondon done a youtube video on just that but with a MA2 - not sure how different a mini would be ...
If you have to fight a headwind for your return flight, you might have already lost the battle.
You have to think about that before you launch the drone and avoid getting into a situation your drone won't be able to come home from.
Happened to me. I think it was the first time that I had that warning, and few seconds after that I lost signal with the drone (because of the distance). I panicked a bit, but I did the only thing that I could - I waited. After some time connection was established and I saw that drone is returning. Apparently wind was not that strong and Mini successfully executed RTH.View attachment 106933
I was wondering what would happen if this warning came up and the RC lost connection due to a weak signal at this point during a strong wind warning? in normal circumstances the MM would enter a fail safe and return to home until connection was made. Anyone experienced these at the same time?
It's just not that simple.I'm sure it was an oversight, but consulting UAV first was to do exactly that. In that response I had asked what the maximum wind speed that a Mini should fly in but did not get a response, so I must assume that nobody has that figure in memory.
Yes.My setup in failsafe is RTH, the warning does say "unable to RTH automatically". So that would result in step 5 in my case if I was to experience both at the same time?
It's just not that simple.
Figures you see for what the Mini can handle are the top wind speed in which the Mini can hover and hold position.
But hovering and holding position doesn't bring your drone home.
Whether you get your drone back depends on windspeed, direction of the wind and the distance to home.
The specs for the Mini show:
Max Speed (near sea level, no wind)
13 m/s (29 mph) (S Mode)8 m/s (18mph) (P Mode)
What this means is that in P Mode, if your Mini was fighting against a 4 m/s headwind, it would only be able to make headway against the wind at 4 m/s
If the Mini was only 100 metres away, that's no big deal.
But if you planned poorly and found your drone was 2000 metres downwind, in P Mode, it would take 8.3 minutes to cover that distance against a wind of 4 m/s.
If you still had signal, you could switch to Sport Mode and the drone would make 9 m/s headway (but burn battery faster).
If you lost signal, the drone would attempt to RTH and only make 4 m/s headway.
Whether it gets home or not depends on how much battery is left.
If you fly the Mini, it's ability to make headway against the wind is less than other DJI drones.
You need to be aware of its limitations and avoid putting your drone into a situation where it won't be able to get back.
Your drone should fly and climb just as fast at 20% as it does at 100%That all makes sense. You should also mention that as the battery drains the power to the motors reduces and creates additional difficulties.
DJI specs give the max speeds for many of their drones in m/s.I find it curious as to why on the forum, wind speed is often quoted as m/s as opposed to km/h or mph?
Look at the settings and you'll probably find that you can select from a range of units.Before flying I always consult my UAV app and it provides windspeed in mph.
Look at the settings and you'll probably find that you can select from a range of units.
That is good to know, so all is not lost and the MM as it is still trying to RTH even with the unable to RTH automatically wind warning and fail safe initiated.Happened to me. I think it was the first time that I had that warning, and few seconds after that I lost signal with the drone (because of the distance). I panicked a bit, but I did the only thing that I could - I waited. After some time connection was established and I saw that drone is returning. Apparently wind was not that strong and Mini successfully executed RTH.
I think that was the scariest situation that I had until now. I have no problem with losing connection, I happened a lot of time, RTH works great, but wind warning about "unable to return automatically" and in the same time need for RTH (automatic return) is scary.
RTH will be executed, no matter of wind warning, only thing that matters is how strong is that wind and will RTH be able to return the drone.