What is the approximate illumination duration for a 120mm ILLUM round?

The illumination duration for a 120mm ILLUM round is approximately 46-60 seconds. This duration is critical for providing effective illumination during nighttime operations, enhancing visibility for troops on the ground, and assisting in target identification. The specific time frame of 46-60 seconds allows for sustained brightness that can support maneuvers, reconnaissance, or defensive operations. This is particularly important in combat scenarios where effective light can provide a significant tactical advantage and improve overall situational awareness.

The duration is designed to provide enough time for troops to execute actions while minimizing the risk of the illumination source being exposed for too long, which could provide an enemy with an opportunity to adjust their fire or position. Understanding this duration helps personnel plan effectively around the limitations and capabilities of their fire support operations.