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$96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

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Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#271

Earlier quoted context omitted.

I wonder how many Hezbollah rocket operators get blown up by their own rockets? A not insignificant number, I suspect.

And then as a follow-up question, how many civilians next door to a Hezbollah launch site get blown up by poorly manufactured rockets?

Probably some fraction of the civilians blown up by Israeli terrorist phone strikes and bombing raids; there's a reason Hezbollah maintains some level of support in the region.

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#272

Earlier quoted context omitted.

100 rockets for $10k is not happening. The price floor is not dictated by the electronics (which did get cheaper), it's dictated by the rest of the system: propulsion, warheads, arming and safety, QA, traceability, climate and shelf life stability. Take a look at Raytheon's manufacturing line: https://www.youtube.com/watch?v=kCCkVAHSzrc That's what it takes to have missiles that are nearly guaranteed to perform to sp…

If you think shelf life, QA, safety, blah blah blah matters when a rocket is 100 bucks, I have just three words: you will lose. The Ukraine war is being fought with a bunch of cheap toy style drones dropping grenades everywhere. The US got their bases blown to pieces across the Middle East by cheap drones that gently float through the air like a paper airplane in comparison to absolutely any missile. And let's not fo…

I'm just not sure what to even say when you're both so assertive and completely wrong. Please stop relying on twitter/reddit to inform your takes.

The war in Ukraine is being fought with all tiers of systems, ranging from Zircons and PAC-3 on the high end to booby traps on the low end. All of them are essential, and shortcomings on any of the tiers is ruthlessly exploited by the other side. Saying that it's only the small drones that matter betrays over-reliance on the gory FPV kill footage.

"QA, safety, blah blah blah" get implemented on every level as soon as it's feasible. You can just look at photos from Yelabuga and see how their assembly lines are not fundamentally different from Raytheon's. Ukraine is standardising their drone manufacturing. This is inevitable, because faulty munitions lead to

- killed friendly soldiers if the munitions explode pre-launch

- wasted logistic resources if they don't launch

- wasted time and targeting opportunity or friendly units not getting fire support when they fail after launch

The cost of faults is severe and much higher than just the cost of the munition itself.

It seems that you're misinformed about the real cost of modern FPVs used in Ukraine. Reports of sub-$1000 drones are years out of date and heavily relied on salvaged munitions, but there are only so many RPG warheads you can get for "free". Current FPVs are heavier, more capable, and cost a few thousand dollars. Further, it's reported that it takes dozens of FPVs to kill a single "hedgehog tank", which brings the total cost of one kill to a rough parity with "classic", "expensive" systems like the Javelin, except Javelins can be carried by a mobile squad, and launching FPVs requires a dedicated immobile unit with a long logistical tail.

Don't mistake forces not being ready to counter low-tier threats immediately with the threats being impossible to counter. Group 3 drones are very effectively countered in Ukraine, to the extent that it takes hundreds to deliver maybe a few TLAMs worth of payload to the target. There are mature systems being rolled out right now across western armies, from various gun-based solutions to APKWS. Group 2 drones are decimated with cheap anti-air drones. Group 1 drones are being handled with APSes, which work pretty well even in urban environments, as Israel has (very unfortunately) demonstrated lately.

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#273
post #233
post #88

There are 2 short segments in the video showing the actual performance and thus far it is a complete [1] failure [2]. The guy has a talent, and he put together a nice prototype based on OpenRocket [3], but with all due respect, this is not a rocket, and you are not going to win any war with this toy, even if all your enemy has are rocks thrown at you from pretty much similar distance. The remix of computer games / Uk…

Something far more interesting, you can find in this channel: https://m.youtube.com/@LafayetteSystems

I've been subscribed to this guy for some time. His work is much more impressive, and IIRC, he either works for a defense contractor or is studying for that.

I think there's lots of people talking past each other on this post. These kinds of designs won't be as reliable as the existing designs, and they may have a systemic flaw, for example, susceptibility to disabling with microwaves. And they aren't going to work after sitting in an ammo depot for 15 years in the desert or after being dropped from a plane.

But these designs will cost just a few dollars more than the equivalent dumb munition (and can possibly be retrofitted), and can be two orders of magnitude more effective in the short term. The threat here isn't "guy in garage makes MANPADS", it's "IRGC converts 100's of thousands of existing unguided cold-war rockets into guided S2A and S2S missiles for $20 each". Even if it doesn't hit any target, each aircraft has a limited number of countermeasures and has to return to base if they run out or risk being hit.

Guided munition at a dumb munition price is enough to invalidate many strategies.

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#274

Uhhh, as someone who is very much under the thumb of ITAR and EAR as an aerospace employee, this is absolutely asking for prison time, and a LOT of it.

Are you afraid this person might be coming for your cake?

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#275

Its scary that you can whip something like this in under 100 bucks. Add a small warhead and you got a small missile. Like we see in Iran, with trumps idiotic war the US cant even protect its allies and own soldiers, even with a whopping 1.5 trillion budget.

The budget is not the issue...the idiots running things behind that budget are the problem.

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#276

Earlier quoted context omitted.

[flagged]

I am completely against the US-Israeli war on Iran. That said, they are not carpet-bombing Iran. That is, they appear to be selecting individual targets rather than engaging in carpet bombing entire areas: https://en.wikipedia.org/wiki/Carpet_bombing The choice of targets is not legally legitimate (and the entire campaign is illegal AFAICT), and sometimes they used old/invalid intel, like what happened with that girl…

[flagged]

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#277
post #156

Earlier quoted context omitted.

I understand your compulsion to rationalize things, make excuses for your abusers, but I ask you to contemplate for a moment what you are defending. One, hopefully we have all seen the genocidal bombing of Gaza turning whole regions of large apartment blocks into an hell-scape of rubble with tens of thousands of people buried underneath them; people, not animals, not “just brown people”, not “terrorists”… people like…

They did not defend it or make excuses for it. They argued about the very specific claim of carpet bombing in Iran , before pointing out the entire campaign is illlegal and calling the choice of targets "not legally legitimate". They also said nothing about Gaza. I share your concern about both Gaza and Iran, but criticising people for calling out an exaggeration is not helping anyone.

"Ah look but they haven't carped bombed Iran" was their argument and it sounds really weird.

Re: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

#278

Earlier quoted context omitted.

100 rockets for $10k is not happening. The price floor is not dictated by the electronics (which did get cheaper), it's dictated by the rest of the system: propulsion, warheads, arming and safety, QA, traceability, climate and shelf life stability. Take a look at Raytheon's manufacturing line: https://www.youtube.com/watch?v=kCCkVAHSzrc That's what it takes to have missiles that are nearly guaranteed to perform to sp…

If you think shelf life, QA, safety, blah blah blah matters when a rocket is 100 bucks, I have just three words: you will lose. The Ukraine war is being fought with a bunch of cheap toy style drones dropping grenades everywhere. The US got their bases blown to pieces across the Middle East by cheap drones that gently float through the air like a paper airplane in comparison to absolutely any missile. And let's not fo…

So much this. Reliability and durability only matters because the thing costs a million dollar a piece. When you have stuff with a mere 5-digits price tag or less, you simply don't care if half of them miss their mark or doesn't fire 10% of the time.
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