Which is the term for a rope used on an extension ladder to raise a fly section?

The term "halyard" refers specifically to the rope used on an extension ladder to raise or lower the fly section. In the context of ladders, the halyard serves a critical function, as it is designed to create a mechanical advantage when extending the ladder.

When firefighters position a ladder, particularly if it has multiple sections, the halyard allows them to effectively and safely raise the fly section to its desired height, enabling access to elevated areas. Understanding the use and terminology associated with halyards is essential for firefighters, as it contributes to safe operations and efficient ladder deployment during emergency situations.

The other terms mentioned do not accurately describe this specific part of the ladder system used for raising the fly section. Therefore, recognizing the correct terminology and the role of the halyard is vital in firefighting practice and training.