What is the definition of Line of Fire (LOF)?

The definition of Line of Fire (LOF) refers to the gun bore position looking at the target. This term is crucial in understanding the direction in which a projectile will travel once fired. The LOF is established by aligning the gun bore with the intended target, ensuring that the projectile follows the correct path towards the target upon discharge.

Considering the context, the other options do not fully encapsulate the concept of Line of Fire. The trajectory of the projectile deals more with the path it takes after being fired, which is influenced by various factors like gravity and air resistance. The angle of elevation pertains to the angle at which the gun is positioned above the horizontal plane, which affects range and accuracy but is not synonymous with the line of fire itself. Lastly, the range to the target refers to the distance from the gun to the target, which is relevant for calculations but does not define the LOF. Understanding LOF is vital for proper aiming and firing procedures in weaponry to ensure accuracy and safety.