Access for maintenance also creates a security problem if unauthorized people can board an uncrewed vessel. Constrained passages such as the Suez Canal could encourage daylight transits and close protection by crewed escorts. In that setting, the crewed ships would protect the uncrewed partners from boarding. Another option is to place a temporary transit crew aboard, with Royal Marines and sailors suggested for a British vessel. These are possible arrangements whose details would depend on how the ships develop.
Notable Point ยท 52:38-53:37
Canal transits could require crews aboard uncrewed ships
A vessel that sails without a permanent crew may still need human guards or a temporary crew during a vulnerable canal passage.