Final answer:
The patch must overlap the damaged area of the life raft by a substantial amount to ensure proper sealing, using robust anchoring systems for larger custom-made covers.
Step-by-step explanation:
When applying a patch to any life raft, the patch must overlap the damaged area by a sufficient amount to ensure a strong seal and prevent any leaks. It is not only the size of the patch that matters but also the methodology used for securing the patch to the life raft. For example, when dealing with larger covers that are custom made, proper anchoring systems are essential. Such systems often rely on elastic lines with metal hooks at their ends to enable easy anchoring to substrate irregularities.
The specifics of the overlap required can vary depending on the type of life raft and the size of the damage, but as a general rule, substantial overlap is favored to maintain the integrity of the raft. Similarly, when controlling Caulerpa webbiana patches, covers of various sizes where utilized effectively, whether as small as 0.5 × 0.5 meters or as large as 4 × 18 meters, secured to irregular, high relief rocky substrates. These methods highlight the importance of robust and adaptable anchoring systems in repairing such critical equipment.