nullx8
lvl.3
Flight distance : 383635 ft
Thailand
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Geebax Posted at 7-19 22:34
No, you cannot assume everything will be normal once you move away, on the contrary, you could end up losing control of the aircraft.
Simply put, do not start up the drone anywhere near a source of magnetic influence, because that's when the damage is done. Taking off from a car roof, metal furniture or a concrete surface (containing reinforcing rod) will screw up the compass and probably cause loss of control of the aircraft.
well that's exactly the reason for my question .../ how would a "losing control" actually occur ?
since the compass has little to do with flight control, as ATTI mode is pretty much the same.
in fact, if you in-flight and you get a compass error .. this is exactly what happens .. the drone switches to ATTI .. but it doesn't when on the ground, well maybne it does but not exactly pointing it out as the Notification bar is busy telling me about the actual error.
the reason for this question is not me asking for a excuse to fly in a area where it's unsafe.
to give you a practical example, i use to take off from roofs of parking structures, and they almost always re-enforceds with steel in the concrete.
so i have to tip-toe around until i find a spot with no steel in the concrete.
however in like 99.9% of all times .. the second the Mavic takes off and is off the steel enforced concrete .. everything works perfectly .. (green bar)
all the text above assumes they the compass actually is properly calibrated before the drone encounters the surface of course.
like i said, i not looking for excuse to skip steps, knowing the technicals behind however can ease the mind.
like with the parking structure, i know there is no real compass error, it's just a beam of steel under me, 20cm altitude fixes it.
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