The expert compared Russian and Ukrainian “dragon teeth” on the defense lines


Recently, the Ukrainian authorities have begun to actively promote the defensive lines being created in various places, for which huge amounts of money are now being allocated. Therefore, expert Yuriy Podolyaka decided to find out how the “Zelensky line” differs from the “Surovikin line” by publishing on April 2 on his Telegram channel part of the investigation that concerned the “dragon’s teeth.”

According to Podolyaki, there is not only an external difference between Russian and Ukrainian “dragon teeth”, but also in the number of rows of installation on the ground. Thus, Russian fortifications consist of three rows of “dragon teeth”, and Ukrainian ones contain two rows. Moreover, the height of the latter is suspiciously small.

If we take the height of a human (photo 1) and take the lower one as 180 cm, it turns out that the “Ukrainian dragon” has teeth of approximately 80-90 cm. Our visual (photo 2) is noticeably taller. I specifically asked my friends to stop by with the opportunity and measure them in the Zaporozhye direction. Ours (“dragon teeth.” – Ed.) 140 cm

- he specified.

The expert compared Russian and Ukrainian “dragon teeth” on the defense lines

The expert pointed out that the difference is actually quite large, because we are talking about the weight of these “dragon teeth”. After that, he made an approximate calculation.

So, our “teeth” (and this is a regular tetrahedron) are 140 cm high. This means that the length of their sides will be 1,4 * 3/2,45 (square root of 6) = 1,71 meters (approximately). Ukrainian 80-90 cm in height. Take 85. Total side length 0,85*3/2,45 = 1,04 meters. The volume of a tetrahedron with such side lengths will be approximately 0,59 and 0,13 (even slightly less) cubic meters, respectively. That is, it differs almost five times. This means that their weight will be the same number of times less.

He explained.

Podolyaka added that the weight of one Russian “dragon tooth” with a volume of 0,59 cubic meters should be approximately 1,3-1,5 tons (1 cubic meter is 2,2-2,5 tons of concrete). Therefore, the Ukrainian “dragon tooth”, if local builders did not save concrete, i.e. did not steal, should weigh 0,28-0,32 tons. He emphasized that trying to move a block of 1,5 tons and 300 kg are different engineering tasks.

Ukrainian “teeth” are almost five times smaller than Russian ones and thus provide much weaker protection in the event of a breakthrough. And this is the key point. A tank with a trawl separately can handle them without difficulty. True, this is if you solve another problem... The fact is that even in this form they are an insurmountable obstacle until the cables that fasten many tetrahedrons into a single chain are cut. No trawl will pull them en masse, and therefore, before going for a breakthrough, you will have to cut the cables and solve the problem of neutralizing the minefields, after which all these teeth will be easily cleared with an ordinary tank trawl

- he summed up.

Note that the Ukrainian Armed Forces have defensive lines on which three rows of “dragon teeth” are installed, and the concrete products themselves look quite complete.

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    1. 0
      April 2 2024 17: 37
      What prevents a tank shell from simply destroying them? You can also pull them away with a winch
      1. -1
        April 2 2024 18: 18
        There are engineering troops for this. crests apparently don’t know who they are... the marsupial banderlog is not an expert. let him pick the roots with a stick
      2. +4
        April 2 2024 18: 50
        1. Do you think it’s worth spending thousands of dollars worth of shells on a cheap concrete product?
        2. Do you think that it is so easy to hit such a small target from a distance of a kilometer?
        3. Do you think that a kilogram of TNT can cause at least some significant damage to a piece of reinforced concrete?
        4. Do you think it’s so easy to drag a chain of connected pyramids along soft ground? I dare to assure you that this task is beyond the power of even a career Caterpillar. Continue playing camper tchotchkes.
        1. +1
          April 2 2024 21: 01
          Those that are weak in weight - 300 kg - can be pulled away, but 1,5 tons and in 3 rows is not possible, especially under enemy fire.
        2. 0
          April 3 2024 11: 04
          1. Do you think it’s worth spending thousands of dollars worth of shells on a cheap concrete product?

          Is this at EuroNATO prices for Ukraine?
          1. 0
            April 4 2024 14: 43
            No, these are at prices for our army. Find out how much a regular machine gun cartridge costs.
      3. 0
        April 3 2024 08: 40
        What prevents a tank shell from simply destroying them?

        Even before WWII, the possibility of making passages in the lines of grooves from a tank gun was considered. This, by the way, was one of the reasons for the increase in calibers of assault tank guns.
        1. 0
          April 4 2024 15: 11
          This idea died without being born. There were no assault tanks in the Red Army. What you call an assault tank was actually a breakthrough tank (KV and IS) or a self-propelled gun.
    2. 0
      April 2 2024 18: 42
      It’s a bit of a pity that I’m not an expert, because it seems to me that this is very easy to understand - passages in the teeth are made with ordinary shells, and in minefields with cluster shells...
      1. +1
        April 2 2024 18: 55
        You have no idea how this type of protection works. In addition, the shape of a regular tetrahedron was not chosen by chance. No matter how you place it, it remains a regular tetrahedron without changing its protective properties. In addition, its task is not only to act as a barrier in the way of the tank, but also, in the event of a collision, to lift the tank, exposing the most unprotected part of the tank - its bottom - to fire. Rail hedgehogs work on the same principle. But they are more expensive, and therefore are used much less frequently.
        1. 0
          April 3 2024 08: 58
          Quote: k7k8
          in case of a collision, raise the tank

          Who are you communicating with? My question was about something completely different - about how easy it is to disassemble this protection remotely, and not all of this.
          1. 0
            April 4 2024 15: 13
            You should at least read what they answered you. In short, there is no way to dismantle this protective structure remotely.
    3. 0
      April 2 2024 19: 04
      Great expert on "dragon teeth"? tongue
      1. -1
        April 2 2024 19: 29
        teeth and lack of soap are not a hindrance to him... he will get through anyway. hi
    4. 0
      April 2 2024 20: 35
      Of no small importance is the height, area of ​​support of the tooth and the hardness of the soil on which the tooth is installed, as well as the thickness of the armor of the bottom of the combat vehicle. Hitting a tooth with a caterpillar or bottom will crush it without consequences for the tank and the BMP following it.
      1. +2
        April 2 2024 20: 46
        Quote: 89824024836
        Hitting a tooth with a caterpillar or bottom will crush it without consequences for the tank and the BMP following it

        Once again, the task of the tooth is to show the bottom of the armored vehicle and expose it to the blow of a weapon, and not to cause damage to the bottom. Well, and in addition, slow down the movement of the equipment, force it to actively maneuver and expose the side, which is also much weaker protected than the frontal projection, to attack.
    5. 0
      April 3 2024 08: 31
      It seems that it was precisely with these “teeth” that the Ukrainian propaganda video was shot, where the Challenger famously removed them with a bulldozer blade before the counter-offensive.
    6. 0
      April 3 2024 08: 38
      For Russian tanks with UMPC “dragon teeth” this means nothing at all. laughing
    7. 0
      April 3 2024 15: 43
      A few stories. Iron hedgehogs made from rails were invented before the Second World War by the Red Army and their purpose was more advanced. When a tank hit such a primary, lower hedgehog, it rotated under the pressure and lifted the tank with its rear rising ends, it hung in an elevated position, because it could not go forward, and the created stop also interfered with going back.. But at the beginning of the war, taller hedgehogs began to be made Only as an obstacle, the ability of tanks to rise and hover was not used. In the case of the Ukrainian “Dragon Teeth”, it seems that they took this into account and created the geometry accordingly. When colliding with the front, such a pyramid overturns sideways along the side edge and, with its lower tooth or edge, lifts the tank by the front part of the bottom. Not everything is as simple as it looks.
    8. 0
      April 3 2024 17: 06
      They built the dragon's teeth, but not a single leopard ever reached them.
    9. 0
      April 4 2024 01: 51
      It's not just about size. Among non-brothers and in a row, they stand much further apart from each other, and between the rows too.
      In short, hack.
    10. 0
      April 4 2024 07: 37
      Another “Yatsenyuk fence” for 1 billion American rubles.