What determines the trajectory of a mortar round?

• A. The type of ammunition used
• B. The elevation setting and the deflection
• C. The weight of the mortar
• D. The type of base plate

Answer: (B)

The trajectory of a mortar round is primarily influenced by the elevation setting and the deflection. The elevation setting determines the angle at which the mortar is fired, directly affecting the height and distance the round will travel. A higher elevation angle generally results in a higher arc and a longer range, while a lower angle results in a flatter trajectory.

Deflection, on the other hand, adjusts the horizontal aim of the mortar, allowing the operator to compensate for factors such as wind or target placement. Together, these two factors—elevation and deflection—play crucial roles in accurately directing the mortar round to its intended target.

While the type of ammunition, weight of the mortar, and type of base plate can influence performance and effectiveness in various ways, they do not directly determine the trajectory of a mortar round in the same manner as elevation and deflection. For instance, different types of ammunition may have varying ranges or explosive effects, but they still require appropriate elevation and deflection settings to hit the target accurately.