What should be the maximum extension of a fly section to avoid accidents?

The correct answer emphasizes the importance of safety when using ladders in firefighting and rescue operations. Limiting the extension of a fly section by using stops is crucial because it helps maintain the stability and integrity of the ladder. When a fly section is extended beyond certain limits, it can become unstable, increasing the risk of accidents and falls.

Using stops ensures that the ladder is extended only to a safe and manageable length, providing adequate support and reducing the likelihood of overreaching or compromising the ladder's structure. This practice aligns with safety protocols that are essential for protecting firefighters and rescuers while they operate at heights.

While fully extending, three-quarters extending, or half extending the fly section may seem feasible in some contexts, these options can create an unstable working environment, especially if the ladder is not secured properly or if the ground conditions are not ideal. Therefore, adhering to the limitation set by stops is a best practice for ensuring safety during operations involving ladders.