it is even covered with two possible inflations - both with helium and hydrogen, but we try to use heliktantly because hydrogen is a dangerous joint. it's worth it to deploy a weather balloon takes about 15 cubic meters helium, as the military explains, in the upper atmosphere, the ball becomes huge, inflating to the size of a truck, the ural brand. therefore, in clear weather, it can be seen in the ground, even with the naked eye. however, the umbrella remains invisible to the enemy’s radar, the surface of the ball does not reflect radio signals, it is difficult to detect and it’s hard to shoot down, which was vividly demonstrated by the story of the chinese balloon. in the sky over the united states, the crew has a supply of gel cylinders and several hundred probes themselves, that is, they can be launched constantly in this way, providing round-the-clock collection, weather data at certain heights are encrypted. bulletin compiling and handing them over to firing units. after that, they can correct for the weather, some shells. as you know, they can fly at an altitude of up to 20 km to