What are the primary factors affecting mortar range?

The correct choice highlights the essential factors that directly impact the range of mortar fire. The angle of fire is crucial as it determines the trajectory of the projectile. An optimal angle maximizes distance, allowing the mortar round to achieve a higher arc and travel further before descending.

Propulsion refers to the force generated when the mortar is fired. This force, often influenced by the charge used, directly affects the speed at which the projectile leaves the barrel, thereby influencing its range.

Projectile weight is another key factor. A heavier projectile may have a different range compared to a lighter one, depending on the explosive and aerodynamic properties of the round. The combination of these three factors—angle of fire, propulsion, and projectile weight—forms the basis for calculating the range of mortar rounds, making this choice the most comprehensive in reflecting the dynamics of mortar operations.