What tool is used to adjust the gripes?

The tool used to adjust the gripes is a turnbuckle. Turnbuckles are specifically designed to provide tension or adjust the length of cables and ropes, making them ideal for modifying the tightness of the gripes. Gripes are typically used to secure lifeboats or equipment on board, and the ability to adjust their tension is crucial for safety and stability.

Using a turnbuckle allows crew members to easily make precise adjustments without the need for excessive force, which can help prevent damage or failure of the equipment. This mechanism is essential in ensuring that gripes are neither too loose, which could lead to equipment shifting, nor too tight, which could cause stress on the securing points.

While other tools like wrenches or screwdrivers serve important functions on board, they are not designed for the specific task of tension adjustment in this context. A hammer is typically used for driving nails or securing items by force rather than fine-tuning tension. Understanding the role of a turnbuckle in this scenario highlights its importance in maintaining safety aboard a vessel.