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The Russo-Ukrainian War brought something to public view that wasn't obvious. Even I didn't really grasp it, despite having mentioned it years ago.
There's a huge range of targets for small, cheap cruise missiles with a rather small (~ artillery grenade size rather than aircraft bomb size) warhead.
The embodiment of this kind of cruise missile is the Shaheed-136.
Shaheed-136 (c) alexpl |
Hobbyist-grade propeller propulsion and navigation.
~ 200 kg total mass
~ 50 kg warhead
2,500 km claimed range (more likely less than 2,000 km)
It's obvious that this can be improved on, but the fact that a cruise missile costing low six digits (EUR or USD) would not just be a decoy, but actually a severe threat is a huge deal. Air defences are not prepared for this, albeit there was someone arguing that our air defences should include cheap missiles to intercept munitions rather than platforms.
Most air defence missiles are more expensive than such a cruise missile. The cheaper ones could largely be avoided by flying very low on well-planned (and varying) routes.
The attacker has the advantage because it can funnel a salvo of a thousand cruise missiles through a 10 km wide corrider within minutes, while defenders with cheap missiles would need to have them spread out over a defensive belt because those cheap defence missiles will have poor range unless they are very similar to their targets (a kind of unmanned kamikaze interceptor plane). Being too similar leads to an insufficient or no speed advantage, so there's stills some advantage of the attacker. Moreover, the defender may suffer damage on critical infrastructure, military equipment or economic installations on the ground, while the attacker doesn't (save for accidents).*
Aircraft on the ground are vulnerable high value targets, but they may be moved during the hours of flight of such a drone. Infrastructure and certain industry installations are more interesting and more reliable (backup?) targets.
There are about 300 high voltage transformer stations in the German power grid; a rich country of approx. 82 million people. Several thousand more transformer stations are in the medium and low voltage grid (source, more here and a list here). One of the largetst German cities, Hamburg, has only three major transformer stations.
The sizes of such transformer stations range from small & elegant to huge. Permanent damage is particularly easy to inflict when you can hit the control building with a warhead, such as a single 50 kg high explosive warhead.
A handful of such transformer stations can be switched to simplistic controls or be repaired, but hundreds or thousands hit within hours or weeks would vastly exceed the short-term repair capability of the entire Western world.
The locations and network are published. Aerial photography is available (Google Maps and similar) as well and everyone can do a bit of aerial scouting with a cheap consumer drone. The damage potential of even tiny payloads such as a molotov cocktail was shown to the public when the power supply of the new Tesla factory near Berlin was cut for days with a small fire.
So basically a wave of 5,000 drones costing each less than 200,000 € (total value 1 bn € only!) would stand a near-100% chance to destroy the German economy with little chance of repair within months or even one or two years. The damage could be trillions of Euros. Quadruple that budget to a mere 4 bn € and you can switch off the European economy.
We aren't even close to having any defence against that. Most likely we couldn't even tell our own Galileo global positioning satellites to stop providing service in time.
The electrical grid isn't the only essential asset that could be targeted and ruines by small payload cruise missiles. The entire chemical and petrochemical industries including oil and gas pipeline pump stations, oil refineries, oil storage sites, airport kerosene tanks is extremely vulnerable.
It's an enduring mystery why the Ukrainians don't apply the main effort concept and knock out one sector - railway, power grid, gas grid or fuel supply of Western Russia. They could, but they're sending their drones out as if all they were mentally capable of was spray & pray (most likely the damned "escalation manager" scum in Washington, DC and Berlin are at fault for this).
Such cheap and light cruise missiles aren't the only kind of cruise missiles that was neglected until recently. The old V-1 would be very much viable if equipped with hobbyist-grade computer, navigation and altimeter equipment. 850 kg warhead to 250 km or 250 kg to 500 km? That's clearly feasible, and all you need for survivability is distraction, flying extremely low (accurate navigation, accurate route planning, calm weather and an accurate altimeter suffice for flying between treetops) and saturation. The price of a V-1 was about the price of a sedan car at its time (with forced labour). We could produce such missiles in a car factory by the ten thousands in a year. The supply of enough explosives would be the only actual challenge in my opinion.
250...850 kg warheads can thus be deliverd to several hundred km depth at about Mach 0.4 for very little cost. The biggest expense of an accurized treetop altitude flight V-1 would probably be the explosives, which could be plain TNT or even cheaper Amatol. A quantity production on a conveyor belt assembly line could keep the cost per missile without explosives below 15,000 € even if we install a Starlink interface, a thermal camera, good intertial navigation, radio or laser altimeter and a military grade GPS/Galileo receiver.
The cruise missiles as we know them since the 80's, but in conventional form especially by Americans bombing Muslims since 1991 are based on a nuclear cruise missile paradigm. The high cost of a nuclear warhead and the need to deter by credibility did lead to that kind of cruise missile. Some later tactical aircraft-launched cruise missiles were essentially the same with less fuel and thus less range.
To leave this high end paradigm allows for cheap small warhead good range cruise missiles and for cheap big warhead short range cruise missiles. Both could be launched in saturating attack waves of hundreds of missiles and could be built to be very resilient to electronic countermeasures.
There's no lack of important yet vulnerable targets for such missiles.
I really wonder why anyone thinks we should invest in expensive strike packages, expensive stealth bombers or pays attention to nonsense such as Oreshnik. Luxembourg could afford airpower that could bring Russia to its knees within weeks!
BTW; it takes three freighters (cost less than 300 million dollars) loaded with three billion dollars worth of such cruise missiles in Pacific Ocean, Gulf of Mexico and Atlantic Ocean to crash the U.S. economy in a strategic surprise attack. The ANG could not stop enough of them. Even a shadowing USN destroyer would not be able to do much, as the rocket-assisted launches could be compressed into a minute or less.
S O
*: Here is an explanation why a belt is usually superior to point defence.
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Are these signs of a military revolution, where legacy equipment and associated thinking is losing its value?
ReplyDeleteThe problem I see with this approach (for the future) is that everyone is thinking about and developing countermeasures which shouldn't be too difficult to deploy. I've been wondering about a way to (cheaply) defeat such systems and swarm attacks, here's what I came up with.
ReplyDeleteA trailer that contains a diesel tank, generator and a large drone. The drone would be tethered (with power and possibly computers and comms on the trailer) so no need for expensive batteries. The drone would essentialy just be a quadcopter carrying sensors and a lightweight 30mm cannon (the near recoilless Rheinmetall RMK30 seems the best choice for this) with 200 or so rounds of ammo. The drone would hover at a height of one or two hundred meters and using airburst rounds would render low flying slow drones/cruise missiles of that size effectively obsolescent. We know about how effective even the cold war era cannons are and by placing the cannon at a certain height we eliminate the primary down side. The whole system is contained in one relatively autonomous trailer and could allow the drone to operate for days or even weeks at a time. You could have a small crew maintaining, refueling and occasionally moving around many such systems. This should be both simple to develop and cheap to build and operate.
They also wouldn't be particularly vulnerable since they would operate behind the front lines and be relatively mobile.
Drones like the ones you mentioned might still be useful in massed attacks on a defensive line though.
Such a defence would have to be deployed as point defence or line and would end up being defeated by saturation. One such gun may be able to shoot down 20 cruise missiles of a 500 cruise missile raid. Acceptable losses.
DeleteThe sensors would drive its costs, total package 3-5 billion € for 1,000 such defence positions.
Against 10 500 cruise missile raids that would yield maybe 100-200 kills, total missiles lost price much less than 100 million €.
I think the countermeasures will be mostly a mix of interceptor drones/missiles plus some gun-wielding systems will get a secondary C-UAS feature.
The point would be to deploy them all over the place. Since they are in the air they would be able to target drones at a greater distance than ground based systems. Each system should easily be able to cover a circle with a radius of several km, meaning that for 1000 km of "frontline" you'd need only 200-250. So each attack would cross multiple lines of defence. On top of that it would act as a warning system since they'd each also radio in (or attach landlines to the trailer) any targets allowing for mobile systems to be vectored in. And finally you could easily redeploy when the target becomes obvious. WW2 showed that in order to really destroy economic targets you needed to keep hitting it (also seen with russias repeated attacks on ukraines power grid), so the moment the enemy starts targeting any part of the economy a bunch of systems are moved to defend whats still left (and still working).
DeleteA larger fighterdrone like system with guns to basically hunt the drones/cruise missiles would be too complex and therefore expensive as would be missiles against so many lowflying targets. And microwaves and lasers are too easy to defend against. Jamming will soon be basically pointless (against such attacks) with the systems operating with AI-enabled autonomy.
Guns are still the best (and cheapest) bet in my opinion. How do you think we'd best be able to defend against such a threat?
The Russian-Ukrainian front is about 1600 km long + Russian Black Sea coastline and Belarus (which Russian cruise missiles overly)?
ReplyDeleteSo that's about 2,000 km. A 30 mm gun may be effective to about 2 km before the HE shell becomes too small to compensate for the dispersion. So you would roughly cover 3 km frontage with one gun. We're talking about approx. 700 guns for a single layer defence belt under the assumption that your design works at all.
700 guns ~ 2.5...4 billion $ (could easily be twice that, though)
So how many layers do yo want? Multiply the price accordingly. I say ~ 20 kills per gun and raid is optimistic, but imaginable.
So 5 layers would be ~16 billion $, equivalent to maybe 160,000 drones. That effort reduces a 500 raid to a 400 raid.
Now I say it's a raid of 1,000 instead of 500 cruise missiles. The % effect is halved.
Now I say the defence positions are easily found in advance by radar and engaged by dropping specialised submunition-missile-drones at 3 km distance that crawl on the ground to get into range if need be. A 3+ million $ defence system gets critically hit by a 200,000 $ effort and fails 100% against the raid.
I don't see how the defence can win out this way even if I assume that the defence works technically and is held at high readiness.
I was thinking less about ukraine and more about europe as your original post was about. These systems would be less useful at the front (too vulnerable) thats why I put front in quotation marks, I meant it more for rear area defense where enemy radar wouldn't reach it. the first line starting in central poland and back from there. But yes, you would need an aweful lot of these systems (though not that much manpower). Saturation is always an issue, and you also don't need to stop every weapon to still be useful. But yes, overall you are correct, it is not cost effective.
ReplyDeleteMy point is that I just don't see how it could be done any cheaper, any missile/drone interceptor that is capable of going after drones will almost certainly be more complex than a mere cruise missile type and therefore even less costeffective. If we are really going for mass manufacturing of these attack systems the defender will be bled dry financially if he's using any kind of interceptor. Or am I missing something?
Thanks for taking the time to reply by the way, it is appreciated :)
The length of Europe's coastlines makes defence even more difficult and unaffordable.
DeleteWe could harden some critical objects where repairs would be the most difficult, generally invest in resilience (the move towards PV and even battery at home is such a move) and most of all, we could deter. with MAD.
I agree that its a threat- but at the volumes you mention- 500 drones in one such attack, it would be impossible for an enemy to hide the preparation. The enemy assembly points would be attacked.
ReplyDeleteI disagree. The drones could be ready to go for years in a 40ft ISO trailer. Commandeered ex-civilian tractors are used to bring the trailer into the correct position with approximate orientation. The launch commands are uploaded by USB drive. The launch command (codes) comes by mobile phone as most simple approach (others work, too).
Delete25 trailers somewhere in 100 km distance to the FLOT.
The great SCUD hunt of 1991 would look successful compared to efforts to hit these launchers in Europe.
Now about launches from ships; you just need to get the ship within ~500 km of the coast, the small & cheap 50 kg warhead drones have enough range to compensate for that. An up-close launch would be possible with strategic surprise as well, you simply desensitise the target by cruising in its frontyard again and again for years.
Funny thing with that map: rumors say there is a rogue nuke in the BosWash area and those night drones in NJ are looking for it. Hopefully it's just another fish in the endless sea of online bullcrap.
ReplyDeleteLet's face it. There is no way to defend a modern industrialised democracy against this sort of attack. It's akin to "mass destruction" biological, chemical or nuclear. The only protection is deterrence in kind. Actually, even undemocratic Russia and China would be very vulnerable against such swirling attacks. And it would be a credible defense for small states like Taïwan - in addition to advanced missiles against the military vessels of an invasion fleet.
ReplyDeleteoops "swarming" not "swirling"
ReplyDeleteI'm not convinced the saturation hypothesis holds up to examination. A big wave can saturate any given single point defense, but in practice it's going to be directed against numerous targets each with their own defenses.
ReplyDeleteConsider the invasion of Ukraine. It's taken Russian a year+ since their initial Shahed deployments to destroy most of the Ukrainian power grid.
1) The whole wave can overfly targets sequentially, saturating all defences until it runs out of airframes.
Delete2) Russian strategic targeting is laughably incompetent (Ukrainian strategic targeting isn't much better, but this may be driven by foreign policy considerations).
I keep wondering, whether countering swarms of cheap cruise missiles with semi autonomous fighter drones is a viable approach or lazy thinking.
ReplyDeleteI assume (<- risky, I know) that a fixed wing drone with some kind of projectile weapon, prosumer level sensors and a moderate advantage in aerodynamic performance that can be reused most of the time could be realized for about five times the cost of their targets.
Am I ignoring deconfliction and IFF, which are vital when engaging large waves, as cost drivers or could this work?
"He who defends everything, defends nothing."
DeleteFrederick II the Great
I think it's super hard to find a viable counter to main effort saturation attack waves.
Interceptor drones could kick off a qualitative arms race (the cheap cruise missiles would get cameras, computing power and power supply for 360°x360° threat approach warning sensors as an obvious countermeasure) that could drive the costs per missile up, though.