What is the loading time for helicopters during the night from 1800 to 0559?

The loading time for helicopters during nighttime operations, specifically from 1800 to 0559, is established to be 5 minutes. This standardized loading time is crucial for ensuring the safety and efficiency of nighttime missions, where visibility and situational awareness can be significantly reduced. The 5-minute timeframe allows for adequate preparation and crew coordination, which is essential in dark conditions. This duration considers the increased complexity and the steps needed for loading personnel and equipment safely into the aircraft, reducing the risk of accidents or delays. Therefore, the correct answer reflects the operational practices used to optimize helicopter readiness in low-light scenarios.