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下面这个通函怎么理解,如果两个罗经指的是一个电罗经和一个磁罗经,那么以前的很多船都没有按照这个要求配备独立的航向监测系统。。。
MSC.64(67)
ANNEX 3
6.3 Heading monitor
If the ship is required to carry two independent compasses, a heading monitor should be provided
to monitor the actual heading information by independent heading sources. The heading monitor is
not required to be an integrated part of the heading control system.
An alarm both audible with mute function and visual should be provided when the heading
information in use deviates from the second heading source beyond a preset limit. |
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