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Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

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Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#262
post #69
post #62

Earlier quoted context omitted.

Property rights in the US are particularly funny. You don’t own as much as you think you do. The land deed you have is a 2D plot of land. There are also mineral rights, air rights, and raparian rights. That last one is the rights to collect water in your land. Most likely there is a water management authority who owns the rain water in your property. Unless your deed specifically states you own mineral rights a minin…

You don't own anything if the government can confiscate it for failing to make indefinite recurrent payments on it. As long as you pay property tax your property is really owned by Uncle Sam.

There are parts of the country where you can buy unincorporated land. But most people don't want to live there. You are responsible for building and maintaining your own roads, pumping your own water and treat sewage. Police, fire, and public schools are a monthly fee. And if you don't pay and change your mind it's a retroactive charge.

It's the kind of living only the most dedicated can afford to do. Everyone else simply pays city/county taxes and assume the problem is going to get sorted.

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#263
post #209

Earlier quoted context omitted.

I don't think that's super clear - it seems to have covered somewhat over 20 miles but more importantly passed over a substantial (4k feet prominent) mountain ridge. That would make reliable control by line of sight radio very suspect and I don't think the operator would have risked it unless they had control by satellite or a high degree of confidence in its autonomous capability. Around the point it passes over the…

Maybe the operator was on the ridge?

Or on one of the helicopters?

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#264

Earlier quoted context omitted.

If you pump enough power at the shielding, a) some of it will get through and b) the shielding itself will get very hot from induced eddy currents.

> pump enough power Problem is you’re fighting path loss which is exponential with distance, whereas the power of your emitter is scaling linearly.

> Problem is you’re fighting path loss which is exponential with distance, whereas the power of your emitter is scaling linearly.

No, EM radiation power decays quadratic with the distance, not exponentially.

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#265
post #240

Earlier quoted context omitted.

Jump 20 by AeroVironment with a wingspan of 5.7m and a payload of 13.6kg[0]. A tweet from Spanish police with a video of the compartment[1]. A Vice article about the same drone[2]. At the end it says, "Police found seven drones, each with load capacities of between four and 25kg," which puts the biggest at 1/6th the capacity of this one. Allegedly. For perspective, the Aerolite-103, a single-seat ultralight aircraft…

I still don't se any drone with a 150 kg payload on Alibaba.

Yup. That's my point. Those kinds of payloads are for manned aircraft or Reaper/Predator drones, not something you can just order off a website.

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#266

> I would have to imagine it was larger than a quadcopter, and I guarantee you it was nothing like a quadcopter from how long it was up - it has to be satellite-driven because there’s no line-of-sight, there’s no cell phone coverage that could have dealt with that, so it has to be satellite-driven, which is pretty freakin’ sophisticated.” So, setting aside this claim that there’s no line of sight, my bet is these guy…

Exactly. A high school bully in a Bell 206 is not a good authority on the capabilities of even amateur UAV hardware

The person you dismiss as a "high school bully" is also a helicopter pilot. That may not make them an authority, but they have fair odds of being more knowledgeable than the average person...

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#267

Earlier quoted context omitted.

Why even use drug mules if you can just drone everything over the border?

Because humans are cheaper than a drone. Hell I live in a Western country and people are getting assassinated for just 10000 euro. Plenty of desperate losers out there to exploit for crime cartels.

Unwilling humans, and humans getting paid less than the cost of their legal ruin, are a liability to criminal enterprises. Those humans are at risk of tattling. Yes, such enterprises can invest in buying prosecutors, prison guards, prisoners, etc. to punish tattle tales -- but robots don't talk. Sure, maybe parts can get traced, but it's bound to be easier to "secure" a part supply (make them yourself if you have to) than to "secure" your human liabilities.

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#268
post #233

Earlier quoted context omitted.

Modern military drones/UAV have some IR shielding/diffusion.

How about some examples? This thing was apparently pretty small. I'd like to see how they managed to pack in all these abilities in something just a couple feet across.

Basic IR shielding is not actually that complicated, you just need an opening to mix cold air with the exhaust as seen on the new H-60 derivatives.

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#269
post #264

Earlier quoted context omitted.

> pump enough power Problem is you’re fighting path loss which is exponential with distance, whereas the power of your emitter is scaling linearly.

> Problem is you’re fighting path loss which is exponential with distance, whereas the power of your emitter is scaling linearly. No, EM radiation power decays quadratic with the distance, not exponentially.

You’re right of course.

Re: Police helicopter's 100mph chase with 'super sophisticated' drone near Tucson

#270

Earlier quoted context omitted.

How about some examples? This thing was apparently pretty small. I'd like to see how they managed to pack in all these abilities in something just a couple feet across.

Basic IR shielding is not actually that complicated, you just need an opening to mix cold air with the exhaust as seen on the new H-60 derivatives.

Exhaust will always mix with ambient air. You make it sound trivial to develop a turbine engine that won't show up on a thermal camera. If have figured out how to make doing so simple I'm sure many militarys are willing to pay billions for your ideas.
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