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  • ched999uk: BR  ::)
    January 16, 2019, 22:26:54
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    January 16, 2019, 20:32:55
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    January 08, 2019, 18:05:13
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    January 08, 2019, 18:02:47
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    January 08, 2019, 17:54:07
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    January 05, 2019, 13:58:53
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    January 05, 2019, 12:42:05
  • Reman: I did double check it with a metre (Mainly because I knew if I didn't check the polarity this would be the time the manufacturer had gone off script and put the negative in the middle of the coax) and felt slightly cheated because it was only making 19.7 volts. :)
    January 04, 2019, 14:01:11
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    January 04, 2019, 10:12:57
  • Bad Raven: Well, it should! Rated for 24v. Be careful, have you checked the PSU output?  Many psu that (say) are supposed to be 12v actually output 16-18v. Is your 20v actually less than 24v??
    January 04, 2019, 08:41:14
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    January 03, 2019, 20:04:11
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    January 03, 2019, 16:18:35

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Author Topic: When RTH is not RTH  (Read 136 times)

Offline Bad Raven

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When RTH is not RTH
« on: January 10, 2019, 12:12:39 »
https://www.gov.uk/aaib-reports/aaib-investigation-to-aeryon-skyranger-r60-uas-sr9112798

SO, unless I am mistaken, the manufacturer was made aware of an issue causing firmware crash in December 2016.

They completed a fix in June 2017, 6 months later.

They did not issue this fix as a website posted update until 8th January 2018, another six months on.

The update was not known by the Operator and Owner (two people) and the multi rotor failed to RTH to correct home and crashed while in night use on the 18th January 2018 in a heavily populated urban environment, luckily without injury to persons.

Yes, well.......................

Offline ched999uk

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Re: When RTH is not RTH
« Reply #1 on: January 10, 2019, 12:28:39 »
This is the problem where small uav are not designed or manufactured under the same stringent safety systems manned aircraft are. They have faulty software with single point of failure and what legal onus is there on the manufacturer to sort it out?

So does this prove that 'certified' pilots should be given more leeway to fly?
High winds, dodgy software etc....

Offline mo_miah

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Re: When RTH is not RTH
« Reply #2 on: January 10, 2019, 18:54:07 »
Thats why you need a failsafe that works. If my drone was to leave the safe flying zone and come within 50m buffer zone between the drone and people/vehicles etc i would disarm and let the quad drop

Offline Bad Raven

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Re: When RTH is not RTH
« Reply #3 on: January 10, 2019, 19:21:37 »
BUT.............They were operating in a densely housed and peopled area, at night, in winds above the 20 mph FORECAST (and I question that as being safe without it being higher than forecast). Letting a drone drop when there was unlikely to be any space to do so even if you had control would IMO be foolhardy.

Offline Lamaule

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Re: When RTH is not RTH
« Reply #4 on: January 10, 2019, 19:38:14 »
Having read this the issue is really that the operator was very inexperienced and flew it on a really windy day.

50Kts is officially known as blowing a hooley.  Personally I consider it a challenge flying in 20kts!!!

Beaufort scale: https://en.wikipedia.org/wiki/Beaufort_scale

The pilot is at fault IMHO.
« Last Edit: January 10, 2019, 19:57:02 by Lamaule »

Offline mo_miah

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Re: When RTH is not RTH
« Reply #5 on: January 10, 2019, 21:01:22 »
BUT.............They were operating in a densely housed and peopled area, at night, in winds above the 20 mph FORECAST (and I question that as being safe without it being higher than forecast). Letting a drone drop when there was unlikely to be any space to do so even if you had control would IMO be foolhardy.

Even if nothing went wrong they should be arrested for flying in a densely populated area.

Letting the drone drop is only when im in an open field and i lose control. Only thing I'll hurt are some blades of grass.


Offline Lamaule

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Re: When RTH is not RTH
« Reply #6 on: January 10, 2019, 21:39:10 »
Even if nothing went wrong they should be arrested for flying in a densely populated area.

Letting the drone drop is only when im in an open field and i lose control. Only thing I'll hurt are some blades of grass.

PFCO and flight operations manual and any exemptions to standard restrictions will have applied.  You can't apply the drone code to someone who has proven their 'competence'. 

There is no mention of the flight being illegal so it is safe to assume all of the above were in place.   Oooh the irony! ROFL!