Found on YouTube. Created by "ポートサービス". Originally published on 2022-07-28.
Japan
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Video Humber Pilotage Area - Pilot Disembarkation
published on 13 January 2022
Article Results online survey into the securing methods of pilot ladders
by Herman Broers - published on 5 March 2021
It has been shown that a majority (51%) of pilot ladders is secured by means of D-shackles, when secured at intermediate length. Previous research (Evans, 2020) has proven that this method has only about 50% of the strength of the pilot ladder when secured at full length (“double ended ladder”), or by means of the “endless-sling” method.