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发表于 2016-10-30 10:30
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来自: 中国香港
I have seen similar markings on some other ships. They are hull markings for location of bottom sensors of Speed Log (“L”) and Sounding Devices (“S”). There are no mandatory requirements to mark these sensor locations on the ship’s side hulls, but some manufacturers and the shipowners like to mark them on new ships to facilitate the underwater repair by divers when the ships are in service.
If the ship is in dock, you may verify this by finding the sensors location at ship’s bottom. If not, find it in the speed log and echo sounder installation drawings. Please let me know the manufacturer of the devices.
Sorry I am using the airport computer so I am not able to input Chinese. |
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