Bahamian Moor
Mooring with both bow anchors set roughly 180 deg apart, restricting the swing circle in tight anchorages.
In practice
Used in narrow anchorages with reversing tide. Two anchors set 180° apart; the chain-locker accumulates twist as the vessel rotates with each tidal change. Mate clears the chains by paying out one cable as the bridle takes over.
Regulatory detail & full definition
A Bahamian moor is a two-anchor mooring in which the vessel lays out both bow anchors roughly 180 degrees apart, so that she sits between them and her swing is restricted to a small circle. It is used in confined harbours where a normal single-anchor swing circle would foul other vessels or shoal water, and it holds the ship in roughly the same position through a tide reversal. It relies on a swivel between the two cables to stop them twisting, and it is less common today because harbour authorities increasingly prefer a single anchor assisted by tugs.
Related
Source: Industry usage; Admiralty Manual of Seamanship
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