What must be done to the gripes before a lifeboat launch?

Before a lifeboat launch, it is essential to disconnect the gripes because these are the lines or straps that secure the lifeboat to its stowage position on the ship. Ensuring that the gripes are disconnected is critical for allowing the lifeboat to be lowered safely into the water. If the gripes remain attached during launch, it could prevent the lifeboat from being deployed correctly, potentially leading to dangerous situations during an emergency.

While checking the gripes for security is also important, it primarily pertains to ensuring they are functioning correctly before launch rather than what must be done immediately prior to lowering the lifeboat. Similarly, painting the gripes has no operational relevance in the context of the lifeboat launch process, and while tightening may be a consideration during regular maintenance, it is not a step that directly applies to the launch process itself. Therefore, the disconnection of the gripes is a critical step to ensure the lifeboat is ready for immediate use.