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Attitude Too Large - What it means and how it's helping you
530067 530067 2018-3-9
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Wellsi
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The 'Attitude Too Large - Backward / Forward Obstacle Sensing Disabled' message pops up very frequently.
I'm still surprised at the number of times I get asked how to fix this; there's nothing to fix, as it's actually helping the Air stay fast and true!

So, as I do, I made a short video explaining exactly what triggers it, what it means, and why you should be happy about it....

Cheers

Ian







2018-3-9
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KREMi
Captain
Poland
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nice, short and informative good1
2018-3-9
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Dorset_Horn
First Officer
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Thanks Ian, I have seen this message more than a few times recently.
2018-3-9
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PUMMY
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Now how would this be any different to a high speed run in low winds?

The forward pitch would be the same angle in...

High winds with a low forward speed
Low winds with a high forward speed

Is the fact the in one of the above situations, the high winds message appears and in the other it does not, allow you to know if you have a high wind situation at height?

2018-3-9
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ImTravis
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Good info, thanks for sharing.
2018-3-9
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Wellsi
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PUMMY Posted at 2018-3-9 09:41
Now how would this be any different to a high speed run in low winds?

The forward pitch would be the same angle in...

Hi pummy
Yep, that's spot on.  It's all about pitch, so whether you're flying fast in low winds or slow in high winds, eventually you'll reach a pitch point where the sensors become ineffective.  
It's ground speed versus wind, or, put simply, the airspeed...

Cheers
Ian
2018-3-9
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hallmark007
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Thanks Ian, I’m sure it has quelled the fears of many. Good job.
2018-3-9
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PUMMY
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Hi Ian

The next logical question is then, how is the high wind warning message triggered?
Wonder what the criteria is for the craft to trigger that warning.
Is it a wind speed measurement, how much drift from a gps position and requires X amount of power to maintain this point?
That info would be gold to us flyers in high wind conditions

That would be good to figure out so we can decipher the warnings and take appropriate action
2018-3-9
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Ottotto
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Perfect! Thanks... but how did you know
2018-3-9
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PedalingDuo
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Good job in the explination.  I suspected that message was something to do with wind and pitch but you provided good details and design consideratios of the Air.  Thanks.
2018-3-9
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I am Sparkacus
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Had it too so thank you for the clear and succinct explanation.  That MOAB sweatshirt really makes me miss ZAKs on a wet and cold UK day!
2018-3-9
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Wellsi
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PUMMY Posted at 2018-3-9 10:17
Hi Ian

The next logical question is then, how is the high wind warning message triggered?

Hi again
The Air can calculate the approximate wind speed by analysing the variant between the expected GPS change (based on the remote's inputs), against the actual GPS coordinate change.
In th simplest scenario,  if there is no remote input (ie just hover), the Air will easily work out the wind speed based on how much effort is required to remain stationary.   

Cheers

Ian
2018-3-9
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Wellsi
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Ottotto Posted at 2018-3-9 10:18
Perfect! Thanks... but how did you know

A load of discussion and research after the Wind Comparison test video I did a few weeks ago   
Ian
2018-3-9
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sky6105
First Officer
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Very good information.
Thank You.
Happy Flying
2018-3-9
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Wellsi
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sky6105 Posted at 2018-3-9 13:33
Very good information.
Thank You.
Happy Flying

Thanks!  And happy flying too fella!  Love the profile avatar   Very appropriate

Cheers
Ian
2018-3-9
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A CW
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I find that simply turning off OA manually on my MPP combats the wind effectively without having to use Sport mode. I can also reach speeds of over 35MPH in p-mode doing that too.
2018-3-9
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Wachtberger
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Dear Ian, once again very well done, thank you!
2018-3-10
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djiuser_91yWLScXxz7B
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India
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I found your post so interesting.
download fb video in hd
2018-3-10
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Wellsi
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A CW Posted at 2018-3-9 23:55
I find that simply turning off OA manually on my MPP combats the wind effectively without having to use Sport mode. I can also reach speeds of over 35MPH in p-mode doing that too.

Morning CW
Yes, absolutely.  After our discussions the other week, I did a load more testing and shot another video which I'm editing now, on how to reduce the risks and improve the performance of the Mavic Pro when flying in high wind...  That will be the conclusion of my high wind trio of films!  

Cheers again!

Ian
2018-3-10
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PUMMY
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Hi Ian

Guess the tips there would apply to any quadcopter or will you have Pro specific tips in the video?
2018-3-10
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Wellsi
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PUMMY Posted at 2018-3-10 02:28
Hi Ian

Guess the tips there would apply to any quadcopter or will you have Pro specific tips in the video?

I shot the video with the PRO, but the guidance will be for any model....!

Cheers,

Ian
2018-3-10
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A CW
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That sounds like a cracking vid to do Ian! Look forward to seeing your work on that one mate.
2018-3-10
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DirkGerrit
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Thank you for this helpfull video, this message made me worried a couple of times...
2018-3-10
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Eduardo0
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Very good !
2018-3-10
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Wellsi
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DirkGerrit Posted at 2018-3-10 03:01
Thank you for this helpfull video, this message made me worried a couple of times...

Cheers    I've had a few similar comments from people...  

I actually misread it the very first time it popped up and I thought I was flying too high
2018-3-10
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LoSBoL
First Officer
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Great informative video, thank you for sharing!
2018-3-11
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Henry M.Y.
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A big thumb-up to you, Ian!

We learn a lot from your detailed observations and from your valuable knowledges.

Henry
2018-3-11
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Tomcatuk
First Officer
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Thanks for the video Ian, being the MA is my first drone wondered what that meant :-)
2018-3-11
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Face-AcheNZ
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Great video - liked and subscribed  
2018-3-11
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maurom82
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thanks a lot for the explanation. it was very useful
2018-3-11
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DJIFlo2
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Great explanation. Thanks!
2018-3-13
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EliXyR
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Thank you so much Wellsi ... Finally I solved the mystery of all those messages xD
2018-3-13
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Wellsi
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Glad to help and get this sorted!  

Ian
2018-3-14
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djiuser_LxfI2fGcyOSh
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Warframe Soma Prime Build
2018-5-30
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nixuspix
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Very helpful. Thank You
2018-5-30
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dr. D
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Thanks  Ian, good video. Very informative.
2018-5-30
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Free2be
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Thanks for the clear interpretation about the sensor disable and the message on the screen, I have this also seeing on the strong wind signal warning.
2018-5-31
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QuadKid
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Thanks for the explanation Ian, quick question, I rarely have a need for OA and VPS unless I am indoors which is almost never, by shutting OA and VPS off will the MP achieve a steeper angle of attack/pitch in GPS mode?
2018-5-31
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Wellsi
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QuadKid Posted at 2018-5-31 01:51
Thanks for the explanation Ian, quick question, I rarely have a need for OA and VPS unless I am indoors which is almost never, by shutting OA and VPS off will the MP achieve a steeper angle of attack/pitch in GPS mode?

Hi again!
Yes indeed sir. Switching off the sensors on the Pro has a huge impact on the speed if you're not in Sports Mode.
Have a look at this vid, based on the Pro:
You can jump to 2:15 to get to the bit on the sensors on the Pro


2018-5-31
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QuadKid
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Wellsi Posted at 2018-5-31 02:20
Hi again!
Yes indeed sir. Switching off the sensors on the Pro has a huge impact on the speed if you're not in Sports Mode.
Have a look at this vid, based on the Pro:

Great Info Ian, much appreciated!
2018-5-31
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