Posts Tagged ‘video’

The Mine-Laying Lawnmower of Death

Monday, June 19th, 2023

I try to keep up with the latest drone developments out of the Russo-Ukrainian War, so this funky remote-control mine-laying device caught my eye:

It looks like someone took a lawnmower chassis and replaced the mower blade and engine with a mine-laying servo.

RATEL is evidently the name of the device, and not connected to the South African Ratel IFV (though it wouldn’t shock me to see those show up in Ukrainian inventories, despite being fairly long in the tooth).

I first saw this mentioned in a Reporting from Ukraine video:

Not a whole lot of information there, either, but he did say “Recent combat footage shows that Ukrainians finally started using mine-laying drones in large numbers. Even though such drones cannot be driven far behind the front lines, they are very effective at mining the roads that go along the front line, especially those that connect Russian positions between the tree lines.”

There’s very little information available on this device online, but speculation on previous prototypes suggested they were trying to lay mines under enemy vehicles, which makes no sense. The Reporting from Ukraine description of them as an area denial weapon makes much more sense.

We think of mines as buried items, but laying them atop roads can take out unwary or distracted drivers, or cause them the to stop to clear the mines (a risky proposition, since they could be designed to explode at any removal attempt, and which subjects stopped targets to possible hostile fire), or to divert around into areas that may have buried mines (and we’ve seen plenty of video from Ukraine of Russian vehicles hitting mines buried to the side while trying to avoid some obstacle).

The Mine-Laying Lawnmower of Death (MLLoD) looks a bit more purpose-built than The Flying Yeet of Death or their wheeled RC bombs.

A whole lot of low-cost, low-tech drone innovation is coming out of this war…

How A 120mm Tank Round Works

Sunday, June 18th, 2023

Here’s something informational for Sunday, Nicholas Moran explaining exactly how a modern 120mm (AKA 120Ă—570mm NATO, the type used by the M1A2 Abrams and the German Leopard 2) APFSDS round works.

  • He has a dummy blue round to demonstrate the features. “All the projectiles are color coded. Explosive, for example, would be green with yellow lettering.” APFSDS rounds are black.
  • “The aft cap is the one piece which is left behind after a modern round is fired, and this takes up a lot less room than a traditional shell casing rattling around inside the tank once you fire it.”
  • A long primer rod runs up the middle for more even propellent burning.
  • “A modern tank does have a firing pin. It’s electrically fired, but it has a firing pin. It looks just like a firing pin you’d expect from a rifle, except it’s about yay long…Electricity goes through the firing pin, sets off the primer, which sets off the propellant, which gives you the big boom.”
  • There are even emergency hand crank firing systems with dynamos to use if the electrical system goes down.
  • “The rest of the shell casing is made of a form of cellulose, and it is burned up in the explosion. So the aft cap is sufficient to seal the breach instead of requiring the entire casing to expand as you you’d find on a traditional round.”
  • “The catch is that this is simply not as robust as a metal shell.” Which is why the loader has to inspect rounds for scratches or bulges to the water-resistant coating. That could cause the round to break apart or misfire. “This is a bad thing.”
  • Which is why tank crews practice misfire drills to ensure safe handling of rounds so they don’t spread loose propellant all over the tank’s interior.
  • “The kinetic energy penetrator is itself a dart… it’s got fins at the back to keep the pointy end forwards, and it is kept centered as it goes down the tube by these sabot petals.”
  • “Modern sabots seem to have settled on three of these petals per projectile. Once the projectile has left the muzzle, the air is caught by the petals and they are peeled away.”
  • The discarded petals are a danger. “This is why sabot rounds such as APFSDS or M-PT should not be fired over the heads of friendly infantry.”
  • “The dart goes that way, hits metal, and basically punches through, taking little bits of metal inside with them. This is called a spall. These little fragments metal are extremely unhealthy to anyone or anything inside the vehicle which it hits.”
  • “However, if the armor is too thin to produce spalling, you get what is known as over-penetration. So you make a dart-sized hole on one side of the vehicle, a dart-sized hole on the far side of the vehicle, and dart sized holes on anything in-between, and outside of brown pants for the crewmen, quite possibly nothing else.”
  • “If so you’re firing such a target, you’re probably better off using a shaped charge round such as HEAT.”
  • He then show off a dummy HEAT projector, which has a funky blunt circular head that “in effect clears the air as a wind shield for the decidedly non-aerodynamic flat bit. The main body of the round also performs something of a stabilizing function and thirdly provides adequate standoff or room for the penetrating jet to form.”
  • “Here is a metal cone surrounded by explosives. The explosives detonate, the cone collapses the liner.”
  • Text popped up on screen at 9 minutes in notes that the penetrating jet is not high temperature plasma.
  • Here’s another video that provides a visualized simulation of how APFSDS rounds work.

    I’m Really Satisfied With My Maytag MVWP575GW Washer

    Wednesday, June 14th, 2023

    Here’s a bit of appliance review that, alas, I probably can’t profit from in any way, since Amazon doesn’t seem to sell the model.

    My old Whirpool washer died in December, so I did some research as to what washer I should be. And most of my research was watching this video:

    And the two brands he recommended were:

  • The Speed Queen TC5000, for which I was quoted delivery times of 6-8 weeks, and
  • The Maytag MVWP575GW, which I could order directly from Maytag in about a week for around a grand, plus shipping and install. So that’s what I did.
  • That’s more than you’re going to pay for an average washer these days. I’ve been using it for six months now, and I’m pretty satisfied.

    What’s so special about it? It uses commercial grade mechanical parts instead of cheap plastic parts and fragile electronics.

    It’s a dumb washer rather than a smart one. This has many benefits:

  • Once you press Start, instead of spending 20 or 30 seconds with the “Sensing” LED lit up, it simply starts filing the tub with water.
  • If you forget to add something you meant to wash, you press the same Start button, lift the lid, put it back down, and press it again, and the washer simply starts washing where it left off. It doesn’t blink lights at you accusingly and refuse to run until you unplug and replug the machine.
  • So far it’s never stopped mid-cycle for no discernible reason.
  • It finishes washing quicker, even with a presoak and extra spin.
  • America’s misguided energy- and water-saving regulations have left us with an array of devices that inferior to earlier generations of dumb devices at the main job they were designed for.

    Why Disney Fails: Their Blindness To Real Geek Culture

    Tuesday, June 13th, 2023

    Here’s a nice, short rant from Paul Chato (who I’d not heard of before) on why Disney’s social justice re-imagining of classic franchises fail: It’s not just their woeful ignorance of their own franchise, it’s the woeful ignorance of the vaster connected universe of fandom/geekdom/nerdom.

  • “The thing that really ties those of us who grew up reading comic books together is not the primary properties like Superman, Batman, Spider-man, or even Lord of the Rings, but the peripheral stuff or peripheral interests. When we talk to each other, we’ll also reference video games, anime, manga, computers, astronomy, network protocols, synthesizers, cars.”
  • Put a bunch of us nerds together, even complete strangers, into a room, well, Heaven help you, and soon we’ll be talking about Cowboy Bebop or Akira Kurosawa, or NES, Atari, ColecoVision, Ultraman, Kirby, Adams, McFarland, Studio Ghibli, second breakfasts, Plan 9 From Outer Space, Fireball XL5, Scooby-Doo, The Day The Earth Stood Still, Matrix (only the first one), Terminator, Blade Runner, Aliens, Herge, Miller, Robert E. Howard, Harryhausen, Lasseter, good scotch. Has anyone heard Kathleen Kennedy talk about any of those things? Of course not, and I can hear you laughing.

  • That’s a pretty good name check list, though I’d add Robert A. Heinlein and H. P. Lovecraft (among others).

    But it’s an interesting point: Social justice showrunners are woefully ignorant of vast swathes of knowledge held by the fandoms they hold in such withering contempt.

    This Is Your City On Democrats: Philadelphia

    Monday, June 12th, 2023

    Evidently it is the deepest desire of Democratic Party activists to turn the streets of American cities into needle-strewn wastelands of drug addicts openly shooting up and shitting on the street. Because that’s the results that the Democratic Party drug- and crime-tolerant policies create time and time again.

    Here’s a video of the Kensington neighborhood of Philadelphia.

  • “This is Kensington Philadelphia the center of America’s drug epidemic overrun with a drug known as tranq, a mixture of horse tranquilizer and Fentanyl that’s turning people there into real life zombies.”
  • Needles are everywhere on the streets, despite the remaining law-abiding occupants and shop owners sweeping them up in the morning.
  • “People come here from all over. They drive here and then they never leave. So everyone comes out here to get drugs. This is the hub, and you can shoot them up and cops wouldn’t do anything about it.”
  • “It’s crazy. You’ll see one block that looked clean, and then you go to the next block over: feces.”
  • “A new problem 24/7 gambling [machines]…they’re in every store.”
  • “Everyone’s using tranq.”
  • Even the drug addicts call frforom bringing the military in to clean up the place.
  • Unmentioned: Philadelphia’s DA is Larry Krasner, another George Soros-backed stooge. Vote for a Soros stooge, get 24/7 open air drug markets in your city, absolutely free!
  • Looks Like The Ukrainian Counteroffensive Has Officially Begun

    Thursday, June 8th, 2023

    So says the tea leaves MSM.

    The Ukrainian military has launched a long-anticipated counteroffensive against occupying Russian forces, opening a crucial phase in the war aimed at restoring Ukraine’s territorial sovereignty and preserving Western support in its fight against domination by Moscow.

    Ukrainian troops, including specialized attack units armed with Western weapons and trained in NATO tactics, intensified their strikes on front-line positions in the country’s southeast on Wednesday night, according to four people in the country’s armed forces, beginning a significant push into Russian-occupied territory.

    By “southeast” they mean “Zaporizhzhia,” where most observers have expected the main counteroffensive operational push to come.

    Reasons for expressing some skepticism is the MSM source, but everyone has been expecting the counteroffensive to kick off for months. Another reason to assume the counter-offensive is real: Western armor has finally been definitively spotted among Ukrainian forces, including Leopard 2s, Bradleys and French AMX-10s.

    “More worryingly was what we saw with the tactics of the armored group. Grouping vehicles closer together like that is just asking for trouble.” But Suchomimus notes we saw some stumbles like trhis at the beginning of the very successful Kherson offensive as well.

    Developing…

    Problem: Some Harris County Voters Dare To Vote Republican. Solution: Deny Them Ballots

    Wednesday, June 7th, 2023

    Independent journalist Wayne Dolcefino alleges that Lina Hidalgo’s hand-picked election coordinator Clifford Tatum deliberately shorted paper ballots to Republican precincts.

  • “If you’re a Democrat, you didn’t like the KHOU investigation that cites more than 120 locations that were under supplied with ballot paper, while millions of ballot sheets were available in a warehouse.”
  • Lots of precinct judges, of both parties, testified that locations ran out.
  • “It’s not just ballot paper problems. Election judges reported 119 polls, nearly 15%, that didn’t open up on time on election morning. Late in the day, a district judge ordered that polls stay open until 8 PM, but a lot of election judges either didn’t get the message, or didn’t care when they did. 64 polls closed at 7 PM even after the judge’s order.”
  • “It should force judge Hidalgo to release all remaining public records.”
  • Of course, she’s waging a lawsuit to prevent just that…

    Russia: We Destroyed Ukraine’s Patriot Batteries! Satellite Images: Not So Much.

    Sunday, June 4th, 2023

    Russia is doing what it always does: Lying about its battlefield achievements. Recently they claimed to have taken out a Patriot missile defense system sent to Ukraine. YouTuber Suchomimus has looked into their claims by comparing them with several relevant satellite images of the site and determined: Not so much.

  • Update on “the May airstrike in which Russia claimed to have hit two Patriot SAM launchers: we’ve had some newly released satellite imagery which does show signs of damage at the air base in question. However, is not as it seems.”
  • Satellite images show that one of the two impact craters were present before the Patriot system was installed.
  • A time sequence shows that the other crater was not in any of the locations where newly dug emplacements showed where new Patriot equipment was stationed.
  • The U.S. admitted that a Patriot was damaged by the attack, very possibly from shrapnel, but that it was minor and quickly repaired. Satellite image analysis supports this claim.
  • “While these satellite images are interesting, and they do confirm an impact at the airport, they don’t show evidence of a destroyed Patriot.”
  • The Tank Museum On The T-14 Armata

    Sunday, May 28th, 2023

    We’ve already covered why Russia’s T-14 Armata tank isn’t all that. Here’s a somewhat more balanced look from David Willey of The Tank Museum:

    The first ten minutes covers the basics of Soviet tank design (the philosophy of favoring firepower over just about everything else, and how political rivalries led to various Soviet tank designs). Then he goes into the details of the Armata.

  • Much of the Armata comes from the abandoned T-95 project. “Although the T14 is looked at as new, it actually relies on systems and ideas from some much earlier projects.”
  • “The smoothbore 2A821M 125mm cannon is an upgrade from the weapon on the T-90. Russian sources claim its muzzle energy is far greater compared to the Rheinmetall 120mm gun.”
  • The unmanned turret means no need for a fume extractor.
  • Theoretical fire rate of 10-12 rounds a minute. I suspect this is highly optimistic and the fire rate is probably the slower one round every ten seconds we already covered.
  • “The new Vacuum One armor-piercing, fin-stabilized, discarding-sabot round is fitted with a 90cm [900mm] long rod penetrator. That’s unusually long. It is said to be capable of penetrating one meter of rolled homogeneous armor at about 2000 meters.” That is quite long. The rod penetrator on the U.S. M829 APFSDS round is 684mm long. Western consensus seems to be that the Vacuum One and Vacuum Two penetrator cores are made of depleted uranium or tungsten.
  • “The A853 engine was a copy of a German x-shaped engine from the war years…the A853 was not however a reliable product, and from all reports it seems to have had major issues.”
  • When working, it theoretically has twice the horsepower of a T-72 engine and capable of reaching 56 miles and hour with a range of 500 kilometers.
  • “The T14 has new 70 centimeter diameter road wheels, and an electronically adjustable suspension system on at least the first two road wheels, and possibly the last ones, and [that’s] called an active suspension system but is fitted over a main torsion bar suspension. It also has rubber-blocked tracks.”
  • The Armata’s sealed crew compartment will have air conditioning, which was introduced in Russian tanks with the T-90M in 2016. (Starting with M1A2 SEPv2, the Abrams has cooling, but it’s mainly geared toward cooling the electronics.)
  • Digital screens with remote cameras.
  • “The gunner can see his target, but he can also choose through those screens a relevant ammunition type.”
  • “The chassis and turret are equipped with a ‘Malachit’ dual explosive reactive armor system, and on the front sides and the top there’s stealth coatings.” Assuming the ERA is actually there and not fake, as on so many captured and destroyed Russian tanks in Ukraine.
  • “The active protection system has a radar to detect and tract incoming anti-tank munitions it states a maximum speed of incoming interceptable target is 1700 meters a second, or Mach 5.” Let’s just say I have grave doubts that it actually works. The Pentagon went with Israel’s Trophy active protection system over Raytheon’s homegrown Quick Kill system for M1A2 SEPv3, and Raytheon is good at developing reliable, high tech weapons. Unlike Russia.
  • “The top of the vehicle is still vulnerable to top attack munitions.” So much for defense against Javelin. Which first entered service in 1996.
  • “However, on closer inspection a number of these technologies and features are not fitted to some of the vehicles. Some you can see there’s covers where the technology or that piece of equipment should be on others is fitted for, but not with.” And that was on parade demonstration vehicles before sanctions. Odds that Russia would have enough parts to fully equip high tech parts to all Armatas supposedly in Ukraine would appear to be slim.
  • Though reusing a lot of features from the abandoned T-95 project, “the new T14 tank is a radical departure in sense of its scale, its layout, its design features and technology from that era of evolutionary Soviet-designed vehicles.”
  • “Originally intended to replace all Russian army tanks, the Russian military had planned to acquire about 2,300 T-14s between 2015 and 2020…but by 2018, delays were announced until at least 2025. Subsequently announcements indicated the apparent cancellation of the main production run.” In between it announced it was going to build 100 of them, though that number may have included other armored vehicles using the same platform.
  • “The [Russian] Deputy Minister of Defense said, quote, there is currently no need to mass produce the Armata when it’s older predecessors, namely the latest variants of the T-72, remain effective against American, German, and French counterparts.” Here the Deputy Minister of Defense is engaged in a time-honored Russian rhetorical device known as “lying his ass off.”
  • “The gradual tightening of sanctions, and then with the Russian invasion of Ukraine, the problem of sourcing the essential microelectronics has come to the fore. Russian industry has been critically dependent on foreign microelectronics and associated technologies. These are no longer available due to sanctions.”
  • “The sights from France and other components are no longer available.”
  • “Other issues come into play that affect the wider Russian defense industries. One is the perennial Russian problem of corruption. Since 2011, a staggering 72,000 officials have appeared before the course on corruption charges.”
  • “The mythic way many Russian military systems and products have been promoted and sold has met a crushing reality in Ukraine.”
  • Even though there may only be 20 test vehicles available, there is an expectation they will make appearance in the battle. A British ministry defense statement said, and I quote, any T-14 deployment is likely to be a high-risk decision for Russia. 11 years in development, the program has been dogged with delays reduction in planned Fleet size and reports of manufacturing problems. If Russia deploys a T-14 it will likely primarily be for propaganda purposes. Production is probably only in the low tens, while commanders are unlikely to
    trust the vehicle in combat.

  • So even a balanced, objective analysis of the T-14 Armata isn’t particularly optimistic about its chances in combat.

    8 Californians Who Left For Texas Say Why

    Saturday, May 27th, 2023

    Californians continue to flee the no-longer golden state, and many of them end up in Texas. ABC7 News in the bay area interviewed eight who fled as to why California dreaming has become a nightmare.

    Some takeaways:

  • “In the span of two years, California’s population has dropped by more than a half million people.”
  • “I was assaulted twice on the BART.”
  • “I’ve never had a house this large in my life.”
  • “It is definitely a lower cost of living in Texas.”
  • “The home that I once remembered and knew back in the 1980s and the 1990s, a lot of that’s gone now.”
  • “Home prices are lower [in Texas], and there’s plenty of job opportunities.”
  • The former mayor of Ventura, CA moved to Texas in 2014. “One of the things I greatly fear about Venture and elsewhere in coastal California is that it’s not a place for everybody anymore, and especially not a place for young families. It’s a place basically where older, affluent people now live. And I think something has really been lost there.”
  • “Home prices in Texas cost less than half of homes in California. U.S. Census Bureau numbers show that the middle and lower classes are leaving California at a higher rate than the wealthy.”
  • “Many who have left in recent years say they simply couldn’t afford to stay.”
  • A mother with six kids says it’s simply impossible to afford a house large enough in California. “I feel like the California Dream was the American Dream in my grandparents’ and parents’ era. That’s just not possible for our generation to live that American Dream in that state anymore. It’s so expensive that you’re struggling every month just to get by and pay your rent and your mortgage and put food on the table.”
  • Food truck owner: “The reason why I left California, honestly, is just the cost. The cost of living, the cost of running a business, regulations.”
  • Mention of the Move to Texas Facebook group for Californians looking to get the hell out of their failing state.
  • “Some people are moving to Texas because of their conservative values.”
  • ” It seems that the environment, politically in California, has just been a one-party rule. Republicans have done absolutely nothing to change anything in any way, it seems to me. They’ve been cowardly about it.”
  • “It’s very sad in Contra Costa County. You can’t even be conservative. You kinda have to hide if you’re conservative almost.”
  • Man whose family moved to California from South Korea in the 1970s: “Unfortunately my parent’s grocery stores were burned down in the L.A. riots, two of them, near Koreatown. And so that was, you know, quite a traumatic experience for my family.”
  • “I definitely think [California] is mismanaged. We moved primarily because of the crime. And, for me, it was not only the crime but also, you know, the amount of homelessness, needles. I was assaulted twice on the BART. Those particular assaults I really do think it had to do with the same kind of violence that I saw in the Bay Area towards Asian Americans.”
  • “I miss the ocean but not enough to move back.”
  • What would it take to move back to California? “Number one, the whole state would have to clean up. Get some of those rotten politicians. Be tough on crime again, like you should. People’s attitudes would just have to change. But for the most part, I really am happy here.”
  • “My commute is seven minutes to work.”
  • “Yeah, we definitely have not even contemplated moving back. We are just really happy out here.”
  • One party Democratic rule has hollowed out the state of California, and the people Democrats used to claim to represent (the working poor and the middle class) are the ones most harmed by the graft, corruption, incompetence, and radical social justice-engendered spiraling crime rates.

    Until that changes, expect people to continue to flee California.