RTH Altitude

[Deleted member 27337]

Hey guys,

What is a good RTH Altitude so that the Phantom does not hit anything when returning to home?

Thanks!

 

[GreggC]

I alter the RTH altitude depending on where I fly, when I fly from my property I set it at 30 meters, there is nothing in my flight radius including ground rise that is over 30 meters.
When I fly elsewhere I adjust accordingly.

 

[msinger]

I always guesstimate the tallest obstacle and add 50 ft.

 

[Meta4]

Hey guys,
What is a good RTH Altitude so that the Phantom does not hit anything when returning to home?

20 metres above whatever obstacles are in your flying area
15 metre trees = 35m RTH
1 metre grassland = 20m RTH
There's no need to go very high in RTH.
It will take extra battery and time to climb high and even more for the descent.
In a low battery situation you don't want to waste whatever battery life you have.

 

[mikep2323]

20 metres above whatever obstacles are in your flying area
15 metre trees = 35m RTH
1 metre grassland = 20m RTH
There's no need to go very high in RTH.
It will take extra battery and time to climb high and even more for the descent.
In a low battery situation you don't want to waste whatever battery life you have.

Good tip,thanks I usually go overboard with the height. I'm going to lower it a little.

 

[RoyVa]

To clear high tension power lines you need 150ft. Cell towers can be higher at 175 so that means 200 ft. Clears all.

 

[Roberto Martuscelli]

Now the concept RTH altitudes is enough clear, except if there are any contraindications to set an high altitude, i.e. 250 or 300 meters, a part the one of the consumption of battery for reach this altitude in safeRTH, as I live in a mountain city where a building of 10 floor can be higher than a building of 20 floor in a different city point, the center of the city is at 1578 Mt of altitude, but there are points in the city that reach 1680/1700 meters or more, so I probably will set the RTH altitude at 250 or better 300mt. to be absolutely sure.