Which of the following is not true about Copter 1 and 2?

The statement that Copter 1 and 2 can hover-fill at night is not true. Hover-filling involves the helicopter maintaining a stable position while it takes on water from a source, and this operation is generally more challenging and potentially dangerous to conduct at night due to limited visibility and the increased risk of accidents. Safety protocols usually restrict certain operations like hover-filling to daylight hours to ensure adequate situational awareness and safety for the flight crews.

In contrast, the capabilities of Copter 1 and 2 regarding self-filling, carrying hose, and specific capacities for water are accurate. Self-filling indicates that these helicopters can autonomously take on water without needing external assistance, while being able to carry a length of 2 1/2 inch hose allows for effective deployment and accessing water sources. Moreover, having specific water capacities means that they are designed to carry designated amounts of water for firefighting operations, which is crucial for effective resource management during wildland firefighting efforts.