Bank Effect - Shiphandling Facts and Rules

Question 1

Bank Effect - suction vs. cushion

Answer 1

• more stern suction than bank cushion effect
• ship sucked bodily towards bank

Question 2

Bank Effect - Shallow Water

Answer 2

Shallow water increases effect

Question 3

Bank Effect - large ship Bow Cushion and PP (Hooyer)

Answer 3

Large ships with heightened bow wave push PP aft giving leverage to bow cushion with danger of sheer (Hooyer pg 88-89)

Question 4

Bank Effect - narrow channel Anchor Warning (Hooyer)

Answer 4

• the anchor can effectively break a sheer
• do not use anchor to break sheer on a tanker with small UKC - hull damage causing oil spill (Hooyer pg 91)