Genghis9
First Officer
United States
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Labroides Posted at 2017-12-12 17:41
There are a few minor problems with that projection.
If you were to ascend to 22966 feet (7000 metres), the climb would take 23:20 leaving very little battery for the descent which would require an extra 39 minutes.
The battery would give up well before that due to freezing temperatures and there's no way you could get a good signal straight up at that height due to the antenna geometry.
Your assumptions are correct from an average or standard factors application standpoint.
I agree with the time distance travel calculations completely, as I was simply considering a hypothetical situation in the purest sense. I also agree with your antenna geometry factor for the same reasons stated, although it could be mitigated rather easily if you wanted.
While temperature might be a factor, however, if DJI says this bird is good to 19 thousand plus feet then I would assume they took in to account temperature factors otherwise you won't get much past the critical temp level whatever altitude it is at, at the time.
Lastly, the jet is not always a factor, first in the winter in North America the jet dips fairly far south but in the summer it stays north well up in to Canada most of the time. There are places in the desert SW where winds aloft are very low and even calm at times. YouTube is full of examples of folks launching WX balloons that release a parachute that lands well within 10 miles of the launch point (assuming you overcame the other factors then this would be minimal at best).
I greatly appreciate your attention to detail and preciseness |
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