Nautic priority rules are to be applied in order, the top rule applies first.
Good seamanship Prevent collisions at all cost & always render assistance Small makes way for large Large vessels are longer than 20 meters in length, or engaged in commercial activity, or have 12 passengers or more Secondaty fairway makes way for primary fairway Any vessel coming from outside a fairway, or a fairway with less priority shall make way Downstream makes way for upstream The vessel downstream of an obstacle shall wait for a vessel upstream of the obstacle to pass Overtaker makes way The overtaking ship shall make way, but the ship being overtaken shall give room Starboard shore A vessel traveling along the starboard shore or starboard edge of a fairway has priority over other vessels Motor makes way for muscle, makes way for sail A mechanically propelled vessel shall make way for a vessel propelled by muscle, which in turn shall make way for a vessel propelled by wind
Therefore an anchored or beached ship need not make way.
An anchored ship does need to show proper signaling indicating it is anchored.
Priorities between vessels of similar propultion
Motor vessels
Starboard priority The vessel coming from the port side makes way for the vessel coming from starboard Opposing starboard Opporsing courses both deviate to starboard
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Starboard makes way for port A ship fairing its boom over starboard shall make way for a ship with its boom over the port side -
Luff makes way for lee A ship luff of another shall make way for the ship lee of the other
Note: Unwritten rule - Wood makes way for plastic, which makes way for steel