What are the main reasons for using a proximity fuze?

The main reason for using a proximity fuze is that it maximizes the spread of fragmentation and can effectively trigger explosions near the intended target, even if the projectile does not make direct contact. Proximity fuzes are designed to detonate a warhead at a calculated distance from the target, enabling a weapon to be effective against fast-moving or evasive targets, such as aircraft. This capability is crucial in increasing the likelihood of damage to the target without requiring a direct hit, thus enhancing overall effectiveness in combat scenarios.

While ensuring impact and minimizing damage, reducing weapon costs, or allowing for manual remote activation are important considerations in weapon design and use, they do not accurately capture the primary design purpose and operational advantage of proximity fuzes. Their primary function is to create an effective explosive effect over a broader area, significantly increasing the chances of successful engagement with aerial threats.