What does PD signify in reference to munitions?

PD stands for Point Detonating, which refers to a type of detonation mechanism designed to trigger the explosive charge at the moment of impact. This mechanism is crucial in ensuring that the munition detonates precisely when it contacts the target, maximizing its effectiveness and lethality. Point detonating fuzes are commonly used in artillery shells, bombs, and other munitions where direct impact is intended to cause destruction.

Understanding the function of a point detonating fuze is essential for cannon crewmembers, as it plays a significant role in the accuracy and effectiveness of their ordnance. The choice of fuze can significantly influence the outcome of a fire mission, making knowledge of its characteristics important for operational success.