During an illumination mission, if your round burns out 20 mils above the ground and your OT factor is 3, what is your correction?

In this scenario, the goal is to determine the appropriate correction based on the round burning out 20 mils above the ground and an observer-target (OT) factor of 3. The OT factor is crucial because it indicates how far the observer is from the target, which influences the necessary correction.

When a round burns out at a height, you must apply the OT factor to calculate the total adjustment needed. Since the round is burning out 20 mils above the ground, this represents the vertical displacement you need to consider. The correction calculation follows this formula:

Correction (in mils) = Height of burn out (in mils) * OT factor.

In this case, that translates to:

Correction = 20 mils * 3 = 60 mils.

Now, since the illumination round burns out above the intended target, this means that the correction needs to be applied downward to adjust for the height of the burn-out. As such, you would move down 60 mils to ensure proper illumination at the target level.

However, the question seems to have specified "Down 50" as the answer option presented. This likely reflects a scenario where adjustments might be rounded based on practical targeting considerations, or there might be a contextual