How many pounds are required to activate pressure fuzing for an AT landline?

In the context of anti-tank (AT) landmines, pressure fuzes are designed to be activated by a specific amount of weight. The range of 300 to 500 pounds is the current standard for many types of AT landmines. This range provides a reliable threshold that ensures the mine remains safe and inactive until sufficient weight is applied, typically from the movement of a vehicle or heavy equipment, which is intended to trigger the explosive mechanism.

This design is crucial for the operational effectiveness of AT landmines, as it prevents inadvertent activation from lighter animals or personnel, known as "collateral activation." By requiring a significant amount of weight to activate the fuze, the mines help ensure that they target the intended vehicles, enhancing their effectiveness in military operations. The range of 300-500 pounds has been verified through testing and standards set within military protocols and is understood as the typical activation weight for such devices.