The author suggests a low cost special AB-Net from artificial fiber, whichmay protect cities and important objects from rockets, artillery and mortarshells, projectiles, bullets, and strategic weapons. The idea is as follows:The offered AB-Net joins an incoming projectile to a small braking parachuteand this incoming projectile loses speed by air braking after a drag distanceof 50 - 150 meters. A following interception net after the first may serve tocollect the slowed projectiles and their fragments or bomblets so that they donot reach the aimpoint. The author offers the design of AB-Net, a developedtheory of snagging with a small braking parachute by AB-Net; and samplecomputations. These nets may be used for defense of a town, city, militarybase, battle-front line, road (from terrorists), or any important objects orinstallations (for example nuclear electric station, government buildings,etc.). Computed projects are: Net to counter small rockets (for example, fromQassam), net to counter artillery projectile (caliber 76 mm), net to counterbullets (caliber 7.6 mm). The offered method is cheaper by thousands of times than protection of a cityby current anti-rocket systems. Discussion and results are at the end of thearticle. Key words: Protection from missile and projectile weapons, mortar, rocket,AB-Net, Qassam defense, incoming defense, armor.
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