What calculations are necessary to establish a "fire control solution"?

To establish a "fire control solution," it is crucial to compile various types of data concerning the target and the firing platform. This includes range, bearing, speed, and target heading data.

Range provides the distance from the fire control system to the target, which is essential for determining the timing and angle needed for the projectile to hit the target accurately. Bearing is the direction from which the target is observed and also plays a vital role in aiming the weapon system effectively.

Speed refers to both the velocity of the projectile and the target. Understanding the speed of the target is important for predicting its position at the time the projectile reaches the target area, which is essential for targeting and engagement.

Lastly, the target heading data indicates the direction in which the target is moving, allowing for accurate tracking and engagement. This combination of data allows for the precise calculation of the firing solution necessary to ensure the projectile strikes the intended target effectively.

Other options focus on individual factors that might influence the projectile’s trajectory but aren't comprehensive enough to create the complete fire control solution required for a successful engagement.