Referring back to the post 16th Jan – Bolton is given backup in Bossier’s “Nautical Rules of The Road”
This book by Paul Bossier is now available & clicking on the Image will take you directly to it.
Learn the Nautical Rules of the Road …
“… A useful technique is to check the other vessel’s movement against the background … it will either be moving right, left or remain steady … this will be a good indicator … helping you to routinely check the other vessels’ bearing movement… You may be tempted to take a Relative Bearing using a fixed part of your vessel’s structure … this will depend absolutely on your vessel’s stability … personally I’ve never found it reliable & wouldn’t recommend it.”
Click the Image or the link below for direct access to Bossier’s book