Is the 'cardboard drone” invincible on the battlefield? Being praised as a flower is actually not the case.

Let’s talk about Ukraine’s “cardboard drone”. In the past two days, a drone made of cardboard has become a bit popular in the media. This drone was produced in Australia and provided to Ukraine. It caught the attention of Ukraine's attack on Russia's deep airport. The result is not Few people are talking about this "cardboard drone". Basically, this thing is praised as a flower, cheap in price, plentiful in quantity, invisible to radar and so on. In fact, let me say that all these things, including this "cardboard drone" itself is a gimmick. Why do you say it is just a gimmick? Because whether it is stealth or low price, it is actually not that.

Let’s talk about the issue of stealth first. Is cardboard invisible to radar wave speed? It is stealth, but for a drone of this level, the key problem of stealth is not the materials and materials, but that it is a low, small and slow target. Among this low, small and slow goal, people tend to focus on "small and low" and ignore this "slow". In fact, "slowness" is an important factor in the stealth of drones. If your flying altitude is below four or five hundred meters and your flying speed is about 100 kilometers per hour, at this time you are basically unaware of all search radars. Stealth, because when the air search radar searches for a target, it will be affected by ground clutter. How to suppress ground clutter? It is necessary to filter out ground clutter.

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