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Ruin your day
| Морской словарь |
This commonly-used phrase probably originated with 5th century bce. greek historian thucydides who wrote “a collision at sea can ruin your entire day.”
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Rule of sixty, английский
In ocean navigation a change in bearing of one degree will result in an offset of 1? 60 of distance traveled. for ease of calculation, one can assume the nautical mile to be six thousand feet, making the offset 100 feet per mile. hence, if a hazard is five miles dead ahead, a course alteration of one degree will avoid the object by approximately 500 feet (the actual clearance would be almost seven feet greater, an insignificant error and on the safe side). a similar rule applies in aerial navigation.
Rudder quadrant, английский
A frame fixed to the head of a ship’s rudder shank, to which the steering mechanism is attached.
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