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Is it feasible for a civilian drone to reach 9000'?

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Is it feasible for a civilian drone to reach 9000'?

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Old 22nd May 2019, 06:07
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Is it feasible for a civilian drone to reach 9000'?

Is this feasible for a civilian drone, or is it more likely to be something that the boys & girls that operate within the "unspecified military expenditure" section of the budget?

https://www.bbc.com/news/uk-england-essex-48352513

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Old 22nd May 2019, 06:13
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Very easy to get much higher than that.
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Old 22nd May 2019, 06:44
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Have a look on YT. Quite a few “hobby” level drones > 10,000’.
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Old 22nd May 2019, 09:29
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A bigger question might be "29 miles off Southend"? Over the North Sea?
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Old 22nd May 2019, 11:01
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Originally Posted by NumptyAussie
Is this feasible for a civilian drone...
I wouldn't try it with my "common or garden" widely available hobby done, for legal and common sense reasons, but given it's fairly sporty initial ROC and battery life I'd suspect it's possible, and certainly possible with something more bespoke.

As Kelvin has pointed out, probably the bigger mystery is the horizontal position..the lat/long given in the Airprox report puts the device over the North Sea, about 10 miles southeast of Clacton on Sea...
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Old 22nd May 2019, 11:05
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Look up High Altitude Long Endurance (HALE)

I think perhaps the wrong question was asked. The OP probably meant is a standard hobby octocopter able to reach 9,000ft.
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Old 22nd May 2019, 11:21
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There is a civil drone which made it all way up to the Space Station on number of occasions
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Old 22nd May 2019, 12:35
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If I was looking to reach 9000 feet+ with a drone, I would model it after a sail plane. It should be very feasible to reach any commercial flight altitude that way.
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Old 22nd May 2019, 13:35
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We have a MW controlled 10m blimp, with full payload and hydrogen, can go much higher.
really, the only limit is the MW controller. If we lose control, the limit is near orbit!

On the 'hobby' type of drones, same issue, signal.
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Old 22nd May 2019, 14:10
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A lot of control

Originally Posted by Smythe
a MW controlled 10m blimp
A megawatt sure sounds like a lot of control.
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Old 22nd May 2019, 15:32
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Flight was BA4469 inbound to LCY from DUB.

I'll be amazed if it was a consumer drone (assuming that it was a drone at all).
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Old 22nd May 2019, 16:22
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It's possible and in fact not even that hard. Some people use very light setups so that any impact (if it crashes) will not hurt anyone. I take "drone" as an UAV. So with wings etc. Since they are autonomous range of signal is not a problem. I've seen these things make 100+ km autonomous flights but usually at lower altitudes. See video:
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Old 22nd May 2019, 17:35
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You can buy racing dones with a thrust to weight ratio of 10+.
With the right prop pitch I would expect them to fly higher then any jet aircraft.
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Old 22nd May 2019, 17:47
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Originally Posted by Morane
You can buy racing dones with a thrust to weight ratio of 10+.
With the right prop pitch I would expect them to fly higher then any jet aircraft.
Jo
Thats quite a claim! 123000ft is the Jet record in a Foxbat, or 367000ft for spaceship one.

Not it sure you would get a quadcopter up there
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Old 22nd May 2019, 17:49
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Spaceship was rocket driven.
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Old 22nd May 2019, 18:27
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The altitude record for a "standard" DJI quad copter is around 16000 feet I think (and then it can make it to the ground again without dropping out of the sky). I guess they would be able to go higher but then you lose it.

A DJI spends lots of battery life trying to stay in place though. If you would let it drift who knows where and at what altitude it would end up.
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Old 22nd May 2019, 22:18
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Since the article didn't specify that it was a quad/octacopter type, perhaps it was a military target drone(sea and air assets practice engaging electronically) or loyal wingman UAS test. I know for certain these are flying now, and flying in the UK. They are a fraction of the size of a manned fighter but have a flight envelope of a manned fighter. But they do look like a traditional jet aircraft only much smaller, like large RC aircraft. The target drones are sometimes painted bright orange, but other time standard military grey.
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Old 22nd May 2019, 23:11
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I’ve passed one at 9700 ft.
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Old 23rd May 2019, 07:26
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When I was in undergrad, I flew R/c aircraft and we would have x/c events where competitors would pile into the back of pickup trucks and fly as many planes as we had channels (analog radios) to see who could go farthest. As I recall, the best we ever saw was about 90 mi by a guy with what amounted to a motor glider.

at the same time, the smart guys in the engineering school broke the world record for R/C airplane altitude by achieving something over 38,000 ft. It was limited by transmitter power only. (Was still climbing 1000 ft/min+ when they lost control authority IIRC)
That was 30 yrs ago with glow plug engines burning nitromethanol lubricated with castor oil. Pretty sure the Uni engineering wonks are WAAY past that now in the era of cheap gps and semi-autonomous control.
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Old 23rd May 2019, 08:02
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Originally Posted by Geosync
Since the article didn't specify that it was a quad/octacopter type, perhaps it was a military target drone (sea and air assets practice engaging electronically) or loyal wingman UAS test.
The E170's GS was 240 kts at the time of the encounter, so it's not surprising there isn't a detailed description of what the object looked like.

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