Interaction

Question 1

Describe Dangers when bow of over taking ship approaches stern of overtaken vessel

Answer 1

Positive pressure from the bow acts on the stern and the rudder of vessel being overtaken causing the latter to want to sheer across the path of the v/l overtaking

Question 2

Describe Dangers when two vessels are abeam of each other (overtaking)

Answer 2

The negative pressure areas will cause the vessels to be drawn or sucked in towards each other whilst the positive pressure areas at the bows will cause the bows to turn away from each other.

Question 3

Describe the dangers when bows of vessels approach from opposite directions

Answer 3

Positive pressure from the bows repel each other.

Question 4

Describe the dangers when two vessels approach from opposite directions and pass abeam

Answer 4

The positive pressure from the bow of ship A will act on the stern and rudder of ship B causing the bow to shear towards the passing vessel A.

Question 5

State two most important factors that govern interaction between vessels

Answer 5

Speed
Distance apart