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Word of warning...

KarlosDaishi

Well-known member
Joined
Apr 7, 2018
Messages
183
Likes
120
Location
Tynemouth, N.E. England
#1
Tried for an adventurous shot today. Visited the local fish quay. Flew tello out over the side.
Almost immediately i got 'visual posituoning not available' and it started to drift back, away from me.
(Luckily it wasnt out into the river)

1525715787529.jpg 1525715819313.jpg
 
Likes: metaphase

zhaoshirong

Well-known member
Joined
Apr 8, 2018
Messages
45
Likes
3
#2
So the uniform surface of the water confused the bottom facing optical sensors so it didn't know where it was?
 
Joined
Mar 19, 2018
Messages
6
Likes
1
#4
It probably depends on the visible field of view of the downwards camera. And as I remember the documentation states that bodies of water are not a great idea to fly over ;)
Good thing nothing happend to your tello.
 
Joined
Apr 15, 2018
Messages
18
Likes
4
#5
Might have a little problem over the water, but those pictures for such a little drone are great, i just hope Ryse figures out a way to improve the video!
 
Joined
Apr 24, 2018
Messages
8
Likes
3
#6
I also have flown the Tello over water! Once the drone lost positioning, drifted quickly down wind and ... out of range. When I reacquired the signal, I could not see the drone...so I increased altitude and looked around until I could tell with first person view how to return. It is easy to lose sight of the drone, especially when using a range extender.
The second time I flew over water, I was less than 20 feet and Tello went into auto land mode! The Tello got with in a couple of feet of landing on the water before I coached her back up into the air...i have video of that!

I will attest that flying over water is hazardous to the future of your tello. I still do it, but try to stay very close to an edge or other objects, (boats) in the water.
 

KarlosDaishi

Well-known member
Joined
Apr 7, 2018
Messages
183
Likes
120
Location
Tynemouth, N.E. England
#10
Nice and calm today so tried a second shot. Had a friend with me as a spotter to keep an eye on things, as it's easy to lose your bearings when watching the screen and the position of the drone.
Had a little backwards drift (with the direction of the wind) but vertical height was steady. Could have possibly gone further 'out' into the river but don't want to push my luck 1527614723095.jpg
 

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