494
Lee-breaker acting as Lightvessel :
When acting as a lightvessel the ice-breaker will show :
By day: a black ball at her masthead.
By night five minutes of flashing with her search-light every 15 minutes.
During foggy or thick weather a gong will be sounded at intervals of one minute, when the fog signal of a vessel in the neighbourhood, showing that she is underway, is heard.
Pilots:
Masters are warned against the danger of taking their vessels over the Taku Bar during the winter season without a pilot. They should realise that the spar buoys replacing the summer floating aids are necessarily liable to be ineffective and that the wreck of the Guthrie forms a special danger.
Inward bound vessels may obtain a pilot from the ice-breaker acting as a lightvessel.
Notice by Agents:
Steamer Agents at Tientsin should give the earliest notice possible to the Harbour Office concerning the following:---
(a.) Date and time of steamer's departure from Chefoo.
(b.) Time of steamer's expected arrival off Taku.
Ice information:
Ice telegrams, giving information of the ice conditions at Taku, Chinwangtao, and-- as far as can be ascertained--in the Gulf, will be sent daily from Taku and Chinwangtao and will be posted at the Harbour Offices at Chefoo, Taku and Tientsin.
Masters of steamers are requested to co-operate in this matter by reporting the ice conditions met with to the Harbour Masters at Tientsin, Chinwangtao and Chefoo immediately on arriving at one of these ports. Such reports will be posted.
To facilitate the making of these reports a special book of forms will be supplied on application to any of the Harbour Offices mentioned.
Masters of steamers are further requested to co-operate by making it a routine practice to signal to passing steamers the ice conditions experienced. The following special signals should be used for the purpose.
Ice Signals:
The nature of the numbered signals is given in Part III.
Part 1. Signals concerning Taku and the Gulf.
Signal No. 1. No ice.
11
27
2. Ice conditions favourable.
3.
11
5.
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77
6. No ice.
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difficult.
very difficult. impracticable.
7. Ice conditions favourable.
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8. 9. 10.
"
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difficult.
very difficult. impracticable.
Part II. Signals concerning Chinwangtao.
At Taku Bar.
In the Gulf,
The following signals are to be made in conjunction with a square flag or a red light at one of the mastheads.
Signal No. 1. No ice.
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"
:
2. Ice conditions favourable.
3.
4.
"
"
"
99
difficult. very difficult. impracticable.
At Chinwangtao.
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13
6. No ice.
7. Ice conditions favourable.
11
"
A
8.
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12
9.
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11
11
10.
17
"
"
1
difficult.
very difficult. impracticable.
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Off Chinwangtao.