During an illumination mission, if the flare burns out 60 mils above the ground and the OT factor is 2, what correction should the Observer send for HOB?

To determine the appropriate correction for Height of Burst (HOB) in this illumination mission, it is essential to understand how to calculate the necessary adjustments based on the given information.

When a flare burns out at 60 mils above the ground, the observer needs to adjust this height to ensure optimal illumination for the target area. Mils are a unit of angular measurement used in artillery and indirect fire operations, where 6400 mils make a complete circle.

The OT (Observation to Target) factor is utilized to determine the necessary correction based on the elevation difference. In this case, the OT factor is 2, indicating that for every 1 mil of angular correction, you would need to adjust the HOB by 2 units in the same direction.

Given that the flare burns out at 60 mils, you apply the OT factor. The conversion calculation starts by adjusting the 60 mils by a factor of 2. Therefore, an adjustment of 60 mils would require a correction of:

60 mils x 2 = 120.

This means that the desired adjustment for HOB would be to bring the flare from 60 mils down to ground level. Since we had to account for this conversion with the OT factor