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To determine the load factor of a helicopter, you need to understand the relationship between the effective load and the weight of the helicopter. The load factor is calculated by taking the effective load and dividing it by the weight of the helicopter.

In this scenario, the effective load is 4000 pounds, and the helicopter's weight is 2000 pounds. By dividing the effective load (4000 pounds) by the weight (2000 pounds), you can calculate the load factor:

Load Factor = Effective Load / Weight

Load Factor = 4000 pounds / 2000 pounds

Load Factor = 2

This means that the helicopter is experiencing a load that is twice its own weight, indicating that it is operating under conditions that result in a load factor of 2. Load factors are important in aviation as they affect the structure's stress and the performance of the aircraft. When a helicopter experiences a load factor greater than 1, it is encountering additional forces acting on it, typically during maneuvers such as turns or when climbing or descending rapidly.