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Old 02-24-16, 06:56 PM   #196
Mr Quatro
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Here's a video that explains what China is doing in their UAV development:http://www.eurekalert.org/pub_releas...-svv122915.php

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Variable thrust direction (VTD) technology is a type of thrust vectoring control (TVC) approach that allows to manipulate the directions of thrust to the fuselage of the aircraft.
This same technical application is also being applied to their incoming warheads so they can change the direction of the warhead.

Not good says CIC director
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Old 03-24-17, 06:33 AM   #197
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Amazon inches closer to actual delivery drones. Does that mean if I shoot down one, I get to keep the video card or book its toting?

http://www.theverge.com/2017/3/24/15...c-us-test-mars

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Old 03-24-17, 09:35 AM   #198
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Quote:
Originally Posted by Onkel Neal View Post
Amazon inches closer to actual delivery drones. Does that mean if I shoot down one, I get to keep the video card or book its toting?

http://www.theverge.com/2017/3/24/15...c-us-test-mars
Too much is missing from the report. The state of the art is this: with a top of the line DJI Phantom 4 Pro+ , costing $1772 at Amazon today. It has a maximum fly time of a half hour on its included battery (this assumes prop guards off and no additional payload.) The drone in the publicity shill Amazon got published on the verge and other media for free clearly shows a drone with prop guards on and carrying the extra weight of a small package.

Now you can extend duration to about 50 minutes by switching to lithium ion batteries from the high drain lithium polymer batteries that come with the drone. However you then cut your max usable throttle from full (at about 30 amps) to 3 amps, totally killing your ability to lift anything and making the craft useless in any wind over 5 mph.

And check this out from a professional drone flier. There is trouble in paradise:


So what can we conclude from the Verge's dog and pony show video? Most likely they took off from somewhere behind that hedge there and landed on the other side, announcing a brave new world of autonomous drone package delivery.

They are as close to making this happen as the Wright Brothers were in 1903. It's a great way to get free advertisement for Amazon and that's as far as reality goes. There is no and will be no autonomous drone package delivery in the foreseeable future.

Last edited by Rockin Robbins; 03-24-17 at 09:50 AM.
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Old 03-24-17, 10:18 AM   #199
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FAA says shooting down droids is illegal.
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Old 03-24-17, 02:17 PM   #200
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FAA says shooting down droids is illegal.
This is true but courts have not gone in the drone's favor all the time. In spite of the fact that your property ownership does not extend infinitely upwards, courts have given certain litigants a pass for shooting down a drone. That is by no means settled law.

Even if it were, crazy people are going to do crazy things, legal or not. Those who would shoot a drone down would most likely be afraid of it and not thinking rationally regardless of what the law says.
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Old 03-24-17, 06:38 PM   #201
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FAA says nothing about crashing a drone into a drone.
Those cheap little racing ones are perfect as interceptors.
Bonsai!!!!
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Old 03-24-17, 11:52 PM   #202
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Ummm....
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Old 03-25-17, 07:08 AM   #203
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I do not care if it is illegal to shoot down drones.

I am much more interested in how to do that.
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Old 03-26-17, 12:27 AM   #204
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Quote:
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FAA says shooting down droids is illegal.
What if I am shooting at a bird but the drone flies in front of my bullets?
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Old 03-26-17, 06:37 AM   #205
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This is a one-time solution, and an expensive one – if it even works. Anyone?

Take an old microwave oven which still works, build a parabol antenna/wave guide for directing it and aim for the drone.. would be interesting.
This is dangerous though, if you do not know what you are doing!
https://fear-of-lightning.wonderhowt...nergy-0133231/

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Old 03-26-17, 04:31 PM   #206
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Jamming radio signals is more illegal than shooting down the drone. Whatever you do it has to be defensible as an "accident." It's difficult to use a microwave generator and a parabolic reflector by accident, but it isn't very difficult to accidentally fly another drone or RC airplane into the drone. Unfortunately your drone or plane would most likely also be destroyed.

Try "I was coincidentally flying in the same area and after passing close by the drone several times to demonstrate my good intentions I accidentally collided. Sure am sorry about that!"

It isn't even possible to turn on another radio on the same frequency and accidentally jam the signal. Modern 2.4 GHz transmitters frequency hop all over the spectrum and it's impossible to do any more. You can fly over a hundred planes and drones simultaneously with the exact same radio equipment. Good drones will simply navigate by GPS to orbit the launch point if their radio signal is messed with, making the microwave trick unusable.
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Old 03-26-17, 05:01 PM   #207
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Walk out back with a Shot Gun and shoot it down?
You just sent a loud signal of what you did.

Most of my Air Guns you will not hear if your a house or 2 away.
100 yards? I can bring a drone down.

Illegal? Maybe.
Can one prove it? Not unless they trespass to retrieve the drone.
Then they still need to prove I shot it down intentionally.

I don't care if a drone is several hundred feet above my property.
That thing drops down to be able to see inside my windows or watch what I'm doing?

It's a target.

There are Anti-Drone systems on the market if you happen to be rich.
They are non-destructive where I think they should lock on and shoot the danged thing down!
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Old 03-26-17, 05:37 PM   #208
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Quote:
Originally Posted by Rockin Robbins View Post
Jamming radio signals is more illegal than shooting down the drone. Whatever you do it has to be defensible as an "accident." It's difficult to use a microwave generator and a parabolic reflector by accident, but it isn't very difficult to accidentally fly another drone or RC airplane into the drone. Unfortunately your drone or plane would most likely also be destroyed.

Try "I was coincidentally flying in the same area and after passing close by the drone several times to demonstrate my good intentions I accidentally collided. Sure am sorry about that!"

It isn't even possible to turn on another radio on the same frequency and accidentally jam the signal. Modern 2.4 GHz transmitters frequency hop all over the spectrum and it's impossible to do any more. You can fly over a hundred planes and drones simultaneously with the exact same radio equipment. Good drones will simply navigate by GPS to orbit the launch point if their radio signal is messed with, making the microwave trick unusable.
Why is jamming illegal? Unless they prove your intent to destroy the UAVs in your area what would they charge you with?

In here I think the only things they can charge you with is the improper band usage, but I dont think that there are hard penalties for that.
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Old 03-26-17, 05:59 PM   #209
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In the U.S.A. any device intended to interrupt radio signals is Verboten!
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Old 03-26-17, 06:41 PM   #210
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Interesting discussion.

I wonder what a commercial drone modified to knock down or capture other commercial drones might look like.
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