You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun's chair. The proper way to do this is to ride down the stay on a riding shackle in which configuration?
• Bosun's chair safety and how it is secured when working aloft • How a riding shackle should bear on the stay to avoid damage or accidental release • The importance of keeping the shackle pin protected from load, shock, or rotation
• Which configuration keeps the load on the body of the shackle and not directly on the pin or screw threads? • Which option best prevents the shackle from unscrewing or opening if the chair twists or you move while working? • Think about which setup minimizes the chance of snagging or shock-loading the connection while sliding down the stay.
• Verify which part of the shackle is designed to ride on a wire or stay (bow vs. pin) • Check which arrangements would put twisting or side load on the shackle pin, increasing risk of failure • Eliminate any option that makes it easy for the pin to work loose, snag, or take the main sliding load on the stay.
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