1699. 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?

The bosun's chair must be secured with the shackle pin passing through the chair's bridle eye, allowing the shackle's rounded body to ride on the stay to prevent chafe and ensure a secure connection; this configuration avoids the risks associated with the pin riding on the stay, using hooks, or adding extra shackles.