The sea anchor shown as item number 18 will NOT __________. See illustration SF-0042.
• Sea anchor (drogue) function in a liferaft • How a liferaft’s drift, heading, and stability are affected by a sea anchor • The separate righting arrangements when a liferaft inflates upside down
• Look at where item 18 (the sea anchor) is attached on the raft. How does that position affect the raft’s motion and orientation in heavy seas? • Which of the listed effects depend on drag in the water, and which would require a mechanical leverage point or righting strap on the raft itself? • Ask yourself: in survival craft training, what specific piece of equipment are you taught to use if the raft inflates inverted?
• Identify which actions clearly result from drag in the water ahead of or astern of the raft. • Decide which functions are normally provided by other fittings on a SOLAS liferaft (e.g., righting strap, ballast bags, boarding ladder), not by the sea anchor. • Make sure you can match each option to either control of speed/heading or physical righting of an inverted raft and eliminate the one that does not fit the sea anchor’s purpose.
No comments yet
Be the first to share your thoughts!