# 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 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.

## Information

sign in.