Litchi relative to ground accuracy ?

[SMI]

Hi all,

I'm curious how accurate the relative to ground accuracy would be in the Litchi app.
My plan is to get some low to ground footage down a (closed) street at maximum speed (~30kph).

I was considering using Litchi and doing it as a waypoint mission following the middle of the street with a ground clearance of about 2-3 feet.

Do you think the ground altitudes would be accurate enough to do this ? or is there a better way you'd recommend ?

Thanks.

 

[Kilrah]

Between Google Earth accuracy and starting point calibration I really doubt it. Any in any case I would not do a waypoint mission without at least 20-30ft margin.

Flying manually would be best.

 

[ICHOTT]

Between Google Earth accuracy and starting point calibration I really doubt it. Any in any case I would not do a waypoint mission without at least 20-30ft margin. Flying manually would be best.

I agree, I don’t think it accurate enough for 2-3 feet, no.

Try a plan of a route, open and clear to fly that is quite slopy!
Setup a waypoint mission, decent length with some decent waypoints, start high, eg 30 feet and try it, set up litchi RTG seatings fly slowly then reduce it down say 5 feet per flight down and see how you end up.
Oh, and please post the vids, it’ll be interesting, good luck !

 

[jaysrmc]

Hi all,

I'm curious how accurate the relative to ground accuracy would be in the Litchi app.
My plan is to get some low to ground footage down a (closed) street at maximum speed (~30kph).

I was considering using Litchi and doing it as a waypoint mission following the middle of the street with a ground clearance of about 2-3 feet.

Do you think the ground altitudes would be accurate enough to do this ? or is there a better way you'd recommend ?

Thanks.

I would not even do this with clearance for 5 meters too many things can happen, wind, compass problems, etc. I usually go out to the location, Fly around where I feel safe height and that is what I program into Litchi with my laptop connected to my phone.. I know this may seem like too much but it is how I feel safe.

 

[Rushmed]

Thats also concerning me every time i setup a mission. I always build my missions with everything set-up and than resave the mission in Lichi with crusing speed 0 as cabel cam. Thats giving me full control (LOS needed) to try the misson.

 

[Robert Mitchell]

Hi all,

I'm curious how accurate the relative to ground accuracy would be in the Litchi app.
My plan is to get some low to ground footage down a (closed) street at maximum speed (~30kph).

I was considering using Litchi and doing it as a waypoint mission following the middle of the street with a ground clearance of about 2-3 feet.

Do you think the ground altitudes would be accurate enough to do this ? or is there a better way you'd recommend ?

Thanks.

Nope. Litchi would not provide you the kind of accuracy you need for this kind of thing.

 

[ICHOTT]

I agree, I don’t think it accurate enough for 2-3 feet, no.

Try a plan of a route, open and clear to fly that is quite slopy!
Setup a waypoint mission, decent length with some decent waypoints, start high, eg 30 feet and try it, set up litchi RTG seatings fly slowly then reduce it down say 5 feet per flight down and see how you end up.
Oh, and please post the vids, it’ll be interesting, good luck !

I’m going to take my own advice and set up a 50m run over a rising ground, 10 waypoints, start at 12 feet, fly real slow, walk alongside and see what it does, then repeat dropping down as low as I can eg 3 feet. My expectation is that if I fly slow it may work
Too snowy in North Yorkshire so will have to wait but the first mission is saved