Stupider is possible, here, from a lovely chap in the Russian Nationalist right:

In addition to the things mentioned, the Kremlin is one of the most secure facilities in the world and very advanced electronic warfare equipment is used there. You can check this for yourself by driving a car with the included navigator along the Kremlin embankment. And your navigator will suddenly show that you are not near the Kremlin, but somewhere in the Vnukovo district. This is the electronic warfare system that distorts the signals of satellite navigation systems and makes it impossible to use them to control UAVs in the area. In the same way, all known frequencies of UAV control channels, both civil and military, are clogged with interference, and strict radio-technical control of all sources of radio emission in the area, including satellite ones, is probably carried out.

And so I assume that the UAV used to attack the Kremlin had no external control and was completely autonomous. Given its relatively large size, it was launched from the territory of Ukraine and flew along the route laid down in the on-board computer using an inertial navigation system, the data of which was corrected using the correlation-extreme navigation system (CENS).

If you explain on your fingers what it is, then a DIGITAL MAP of the flight route, previously taken with the help of satellites and aircraft, is stored in the memory of the on-board computer, and the UAV constantly checks its location with this digital map using an onboard radar or electro-optical system. And it does not need any external control signals. And no interference from electronic warfare systems affects him. And at the very final stage, the on-board computer can use a regular photo of the target to accurately hit it. For example, the flagpole on the dome of the Senate Palace.

I repeat. In my opinion, just such a UAV was used to strike at the Kremlin. And only the United States has such the highest level of technology. And apparently they were used to hit the Kremlin. It is unlikely that directly, just the United States helped Ukraine implement them in hardware, providing components and providing technical support for the manufacture of this UAV.

In addition, the fuselage of this UAV is of great interest, what materials was it made of? Why did he have extremely low radar stealth, that even the "Shells" placed on the roofs of Moscow buildings did not notice him?

https://t.me/blackcolonel2020/895