What is a key consideration when calculating the PI for jumps at night?

When calculating the Performance Improvement (PI) for jumps at night, a key consideration is the need for increased distance to ensure safety and accuracy. The correct choice indicates that you should add 50 yards to the standard daylight PI. This adjustment accounts for the reduced visibility and environmental factors that can affect a jumper’s ability to identify landmarks and make accurate judgments about their landing zone during nighttime operations.

At night, depth perception and reference points can be compromised, increasing the chance of landing discrepancies. Therefore, extending the PI by 50 yards helps to create a buffer that accommodates these challenges, enhancing the safety margin for night jumps. It's vital for jumpers and the team involved in night operations to understand that this added distance is a precautionary measure to mitigate the risks associated with less visibility.