The vessel is turned round in bet own length. No headway or stern way is gathered. When the engine is reversed a powerful swing to starboard is generated, and so these ships are always swung to starboard, unless they have small high-speed propellers, when transverse thrust is small. In (1) the engine is worked full ahead on full starboard helm. At the first sign of headway the helm is put amidships and the engine reversed fully. The swing to starboard continues, (2). The sequence is repeated in (3) and (4), and so on, until the vessel is turned. If the astern power is small the watch for headway must be extremely diligent.
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