Max 'altitude' below take-off?

gringorio · Apr 19, 2016

Has anyone figured out if there is a maximum "altitude" below take off for the Phantom 3 series? Is there a set limit like the 1640' above takeoff?

I'm assuming there isn't since, generally, flying below takeoff would be a flight into a deep canyon or a crash. I'm curious because of the desire to fly in places with really dramatic changes in topography...

Ramphex · Apr 19, 2016

Good question. Sub'd for answers.

sar104 · Apr 19, 2016

There is no minimum altitude set in the firmware.

desertair · Apr 20, 2016

Gringorio, no answer to your question but, my son- in law and I love flying on the mountain and are always looking for fellow phantom pilots!

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timz5011 · Apr 20, 2016

Not sure of a limit, but dropped into the Milk River, Alberta coulees last weekend. Vertical drop was just over -700 ft.

Ramphex · Apr 20, 2016

sar104 said:
There is no minimum altitude set in the firmware.

Are you confirming this for the latest firmware?

sar104 · Apr 20, 2016

Ramphex said:
Are you confirming this for the latest firmware?

I haven't tested it, if that is what you mean, but there has never been a minimum. That would not even make any sense.

bradbrok · Apr 20, 2016

I recall hearing about a -200m altitude limit. I haven't had anywhere to test this though. Although the -700ft is more than that, so perhaps there's no limit to negative altitude.

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N017RW · Apr 20, 2016

At some point it may be possible to exceed the max pressure measurement range of the barometer but even then it would just remain at that value.
There's just no reason to put a flight limit on a negative altitude.