In mortar position selection, what does 'Overhead Clearance' mean?

Overhead clearance in the context of mortar position selection refers to the ability to fire unhindered, indicating that there are no obstacles or structures above the mortar that could interfere with the trajectory of the rounds being fired. This is crucial for effective mortar operations, as any overhead obstructions could potentially cause rounds to ricochet or be deflected, leading to inaccurate fire and possibly unintended damage or casualties.

When selecting a mortar position, ensuring that the area has adequate overhead clearance allows for safer and more effective execution of fire missions. This includes considerations such as the height of trees, buildings, or any other structures that may be present in the vicinity. Recognizing and accounting for these factors is essential to maintain operational effectiveness and ensure the safety of both personnel and equipment.