Question

During an ILLUM mission your round burns on the ground for 13 seconds. You are observing 155mm M485A2 illumination and the rate of decent is 5 meters per second. What HOB correction do you send?

Answer 1

The HOB correction that needs to be sent for the 155mm M485A2 illumination round that descends at a rate of 5 meters per second and burns for 13 seconds on the ground is 65 meters.

Step-by-step explanation:

The student is asking about a calculation related to an illumination mission where we are given the duration of illum (illumination) burn and the rate of descent of a 155mm M485A2 illumination round. The HOB correction (Height Of Burst) that needs to be sent can be calculated based on the given rate of descent and the time the round burns on the ground.

As per the given information:
- The round burns on the ground for 13 seconds.
- It has a descent rate of 5 meters per second.

To find the correction needed, you would multiply the time by the rate of descent:

• 13 seconds * 5 meters/second = 65 meters.

The HOB correction to send would be 65 meters to ensure accurate targeting for future rounds.