Rule 6

Question 1

6 Intro

Answer 1

Every vessel shall at all times proceed at a safe speed so that she can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions.

In determining a safe speed the following factors shall be among those taken into account:

Question 2

6a)

Answer 2

By all vessels

Question 3

6a) i)

Answer 3

state of visibility

Question 4

6a) ii)

Answer 4

the traffic density including concentrations of fishing vessels or any other vessels.

Question 5

6a) iii)

Answer 5

the manoeuvrability of the vessel with special reference to stopping distance and turning ability in the prevailing conditions;

Question 6

6a) iv)

Answer 6

at night the presence of background light such as shore lights or the backscatter of her own lights

Question 7

6a) v)

Answer 7

the state of wind, sea and current, and the proximity of navigational hazards

Question 8

6a) vi)

Answer 8

the draught in relation to the available depth of water

Question 9

6b)

Answer 9

additionally, by vessels with operational radar:

Question 10

6b) i)

Answer 10

the characteristics, efficiency and limitations of the radar equipment;

Question 11

6b) ii)

Answer 11

any constraints imposed by the radar range scale in use

Question 12

6b) iii)

Answer 12

the effect on radar detection of the sea state, weather and other sources of interference;

Question 13

6b) iv)

Answer 13

the possibility that small vessels, ice or other floating objects may not be detected by radar at an adequate range;

Question 14

6b) v)

Answer 14

the number, location and movement of vessels detected by radar;

Question 15

6b) vi)

Answer 15

the more exact assessment of the visibility that may be possible when radar is used to determine the range of vessels or other objects in the vicinity