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Mavic2Pro How to take off while on a moving platform
589 24 2020-9-6
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Sorenwk
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Denmark
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Hi.

I fly regularly the Mavic 2 Pro and the Phantom from boats and in extreme conditions. However, one thing to always bug me, is that you need to stop the boat when you launch the Mavic 2 Pro, but not when launching the Phantom. Why is this? I tried to have a look in the developer tools, with no luck og becoming wiser.

It seems it's controlled in the software somehow because the drone will lock it self from taking off as soon as the platform it is on is travelling at 20kph or greater.

Any help is greatly appreciated.

Here's a video, so you guys can get an idea of what i mean.


2020-9-6
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Ramon
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2020-9-6
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Ramon
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2020-9-6
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A J
Captain
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Thanks for sharing
2020-9-6
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Labroides
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but not when launching the Phantom. Why is this?
At 0:35 you'll notice that the drone isn't fighting to hold position as its position is changing due to boat movement.
The flyer will have put the Phantom into atti mode to do that.
2020-9-6
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Montfrooij
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I have never tried it, but sure loved watching that video!
2020-9-6
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Woe
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Thanks for sharing
2020-9-7
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Tasos GR
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Greece
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nice, useful  !!!!
2020-9-7
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Tentoes
Captain
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Um. I don't know how to solve your problem, but as a drone flier,
2020-9-7
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DJI Stephen
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Hello there Sorenwk. Thank you for reaching out and for posting this intersting video on how to take off while on a moving platform. In addition, I will post a DJI Guide link on How to Fly Safely Over Water ( https://store.dji.com/guides/how-to-fly-safely-over-water/ ). Thank you and fly safe always.
2020-9-7
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Lucas775
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Awesome stuff and I thought hand catching on flat land is amazing!
2020-9-7
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Sorenwk
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Labroides Posted at 9-6 18:30
but not when launching the Phantom. Why is this?
At 0:35 you'll notice that the drone isn't fighting to hold position as its position is changing due to boat movement.
The flyer will have put the Phantom into atti mode to do that.

I have atti mode configured for my mavic so i can turn it on and off with the button that normally puts it in tripod mode. However this so doesn't solve my problem of the drone being locked by the and not being able to take off.
2020-9-7
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Sorenwk
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Denmark
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DJI Stephen Posted at 9-7 19:35
Hello there Sorenwk. Thank you for reaching out and for posting this intersting video on how to take off while on a moving platform. In addition, I will post a DJI Guide link on How to Fly Safely Over Water ( https://store.dji.com/guides/how-to-fly-safely-over-water/ ). Thank you and fly safe always.

Hi Stephen.

Good guide for beginners. However there's nothing in there that deals with the issue of the drone being locked from taking off when it travels more than 20 kph.
2020-9-7
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DAFlys
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Amazing footage.   How many drones have you lost so far?
2020-9-8
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Labroides
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DAFlys Posted at 9-8 00:49
Amazing footage.   How many drones have you lost so far?

Amazing footage.   How many drones have you lost so far?
It's very obviously not his own video
2020-9-8
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xagoras
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Greece
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Sorenwk Posted at 9-7 22:22
Hi Stephen.

Good guide for beginners. However there's nothing in there that deals with the issue of the drone being locked from taking off when it travels more than 20 kph.

Out of curiosity, doeas this 20kph rule apply to all moving vehicles, like cars trains etc, or does it has something to do with the sea's up and down movement?
2020-9-8
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Matthew Dobrski
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I will have to confirm my theory, but I believe Mavic generation is recording home position immediately AFTER vertical launch, while Phantoms does that while still on the ground. This, however, is impossible with the ground moving at 20+ knots speed. Perhaps it has something to do with flight mode (P or A) selected prior to launch. In Atti mode Phantom may simply ignore Home Point as irrelevant (no GPS lock), while Mavic will not allow for such?
2020-9-8
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TheLazyC
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That is some wild stuff. How many don't make it back?
2020-9-8
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DAFlys
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Labroides Posted at 9-8 02:22
Amazing footage.   How many drones have you lost so far?
It's very obviously not his own video

Im not sure why you think that.
2020-9-9
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Labroides
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DAFlys Posted at 9-9 00:08
Im not sure why you think that.

I'm not sure why you think that.
I guess you are right, because no-one ever posts a link to a video made by someone else.
2020-9-9
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gnirtS
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I think the problem with the mavic is that even in ATTI mode the GPS is on and locked - its just not used for position holding.  It still records its location, home point, speeds etc.

Ive had it refuse to take off previously from a rolling but stationary boat.  It comes up with IMU initialisation errors so thats another potential issue - it needs to be fairly stable for its self checks before its ready to fly.

2020-9-9
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DAFlys
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Labroides Posted at 9-9 00:42
I'm not sure why you think that.
I guess you are right, because no-one ever posts a link to a video made by someone else.

Even the avatar looks like the boat too.
2020-9-9
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akozc
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at 3:24  literally  all the tendons in my legs started  to twitch  involuntary ....
2020-9-9
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Labroides
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DAFlys Posted at 9-9 01:59
Even the avatar looks like the boat too.

Even the avatar looks like the boat too.
Correction .. Even the avatar looks like a boat too.
With are just a few minor differences.
Like one is a 22 metre long Volvo Ocean 65 with a crew of 10, built for round the world racing.
The other is a 2.6 metre long Mach 2, made for slightly shorter distance racing with a smaller crew.
https://www.mach2boats.com/


2020-9-9
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DAFlys
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Labroides Posted at 9-9 02:52
Even the avatar looks like the boat too.
Correction .. Even the avatar looks like a boat too.
With are just a few minor differences.

Im impressed with your boat identification skills.
2020-9-10
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