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Drones threatening commercial a/c?

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Drones threatening commercial a/c?

Old 20th Dec 2018, 10:50
  #921 (permalink)  
 
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Sussex Police saying the last drone sighting was at 08:45. How much longer do they need to leave it before they can declare it safe enough to re-open the airfield?
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Old 20th Dec 2018, 11:03
  #922 (permalink)  
 
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Originally Posted by NAROBS View Post
On the scale of risk, would a police marksman with a sniper's rifle be any more random or unguided in terms of unanticipated deleterious effect than that of an airport operative with a thunderclap bird scarer ?
Yes, it will definitely be more random and is in no way comparable to use of a shotgun, where the pellets quickly slow down and fall. Any rifle rounds that miss (and probably even those that hit, as a drone wouldn’t slow them down much) would go a long way up and fall to earth still with lethal potential. Hunting with rifles is only done in open wilderness or where the line of sight puts terrain behind the intended target to collect any wayward rounds. Aiming a rifle upwards would need the field of fire to be cleared for a few miles in the chosen direction, a practical impossibility near an airport.

When police or military snipers are targeting an active shooter, more risk can be taken because there is a need to balance risk to life of the shooter’s actual/potential targets against that to a possible single distant bystander. The number of potential targets is therefore a consideration, but there is still an imperative to reduce risk to bystanders to an reasonable minimum. In the aviation case, shooting at a drone with a rifle might be justified if an aircraft was on final reserve and needed to land immediately; otherwise diversion is ‘reasonable’ and from that perspective is the most legally defensible option.

Last edited by Easy Street; 20th Dec 2018 at 11:22.
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Old 20th Dec 2018, 11:41
  #923 (permalink)  
 
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Surely one of these is the answer:
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Old 20th Dec 2018, 11:42
  #924 (permalink)  
 
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A slightly less severe option than a Tomahawk or other ground-to-air missile which I've seen suggested!

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Old 20th Dec 2018, 11:47
  #925 (permalink)  
 
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If they catch the culprits for the LGW Drones, a very long custodial sentence should make anyone think twice about doing similar in the future. A minimum of 10 years inside if I were a Judge.
ps: Any attempts by the convicted to fly drones into their prison with drugs, then another 5 years for each conviction.

As a last resort, expel the vagabonds to Garvie Island.
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Old 20th Dec 2018, 12:03
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According to Eurocontrol Gatwick will be closed till 4PM local time
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Old 20th Dec 2018, 12:15
  #927 (permalink)  
 
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Originally Posted by NAROBS
​bearing in mind drones in the military sphere are already the next best thing to sliced-bread for intelligence gathering and asymmetrical threat suppression. No counter-measure already ? Don't believe it.
Military rules of engagement may sometimes give scope to use lethal force where activities such as intelligence gathering are potential (rather than imminent or actual) threats. That kind of freedom is less likely to be given outside conflict situations and very much less likely to police. Military counter-drone technologies include electronic options: possibly problematic for GPS and other navigation systems!
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Old 20th Dec 2018, 12:46
  #928 (permalink)  
 
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All flights supended for today.
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Old 20th Dec 2018, 12:51
  #929 (permalink)  
 
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Police marksmen now on the airfield.
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Old 20th Dec 2018, 13:28
  #930 (permalink)  

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Dr Alan McKenna, from the University of Kent, said the drones appeared to be "of an industrial size" not "one you can buy from the shops".
https://www.bbc.co.uk/news/uk-england-sussex-46623754
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Old 20th Dec 2018, 13:41
  #931 (permalink)  
 
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I do wonder why a Police helicopter can't follow one when it needs to go and land. Someone will go to pick it up / change its battery at some point.
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Old 20th Dec 2018, 14:22
  #932 (permalink)  
 
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If the staff at Gatwick have seen drones in the last couple of hours, how come NPAS hasn't simply hovered nearby and followed it home using FLIR, or waited for the battery to flatten it falls out the sky.
And the place and its surroundings are now crawling with media, how come there's no video or stills of the errant device(s)...?
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Old 20th Dec 2018, 14:56
  #933 (permalink)  
 
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"All Gatwick flights now cancelled until at least 1900 GMT, coordinated and deliberate drone operations are still ongoing in and around the airfield, multiple police forces and other resources now deployed, do not underestimate the seriousness of this unprecedented and developing situation."
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Old 20th Dec 2018, 15:00
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Only photo I could find is below. Eddie Mitchell is a journalist for BBC and also a drone pilot.

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Old 20th Dec 2018, 15:05
  #935 (permalink)  
 
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Originally Posted by Tetsuo View Post
Only photo I could find is below. Eddie Mitchell is a journalist for BBC and also a drone pilot.

https://twitter.com/brightonsnapper/...61518933499904
This pic is of the npas helo searching? Not the troublemaker drone?
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Old 20th Dec 2018, 15:09
  #936 (permalink)  
 
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Sometimes I wonder if I should change my name to Mystic Meg?

8th Dec 2014 Post #55 New CAA legislation affects Model Flying


If they were flying to a pre-programmed destination then the up and down link wouldn't be required. This would make RF jamming on up and downlinks pointless. Jamming GPS frequencies would have so many implications for all the other users that I would doubt it would be considered.

As for anti-aircraft use of drones, only two would be needed to take out the majority of airliners. Jamming of up and downlink frequencies would be worth doing in this case, as the video would be necessary to home in on the target.

The intentional nuisance value of drones should not be underestimated. A number of them flying a GPS racetrack course could close an airport for an hour or so, whilst attempts to down them would be likely to create a FOD hazard.
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Old 20th Dec 2018, 16:12
  #937 (permalink)  
 
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Military now deployed.
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Old 20th Dec 2018, 16:39
  #938 (permalink)  
 
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It seems tto me the safest alternative is to shoot it down from above using a shotgun in a police helicopter. At close range it would be hard to miss. You could see where the overspray was going to wind up, thereby minimizing any collateral damage. If you approach from above the drone camera will never see you coming.
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Old 20th Dec 2018, 17:00
  #939 (permalink)  
 
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Most drones (e.g. DJI) are fitted with a mix of GPS, solid-state accelerometers and gyros, barometric altimeters and multiple cameras for object avoidance and visual odometry. They really are quite sophisticated and relatively inexpensive.

Quite shocking that it is possible to purchase technology like this without regulation or licence.
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Old 20th Dec 2018, 17:09
  #940 (permalink)  
 
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Daily Mail has a video. Make of that what you will....
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