What is the rate of descent for M485A2 illumination rounds?

The rate of descent for M485A2 illumination rounds is indeed 5 meters per second. This specific rate is critical for understanding how these rounds will behave once deployed. Illumination rounds are designed to provide light over an area for target identification and surveillance purposes. Knowing the descent rate helps artillery and fire support teams calculate the time it will take for the round to reach the desired altitude and the overall effectiveness of its illumination.

The rate of 5 meters per second is significant because it allows fire support teams to accurately predict the duration of illumination and ensure that it aligns with the operational needs of ground troops. Effective coordination during operations relies heavily on such precise calculations, ensuring that illumination is maintained when needed most.