Bow Thrusters - Shiphandling Facts and Rules

Question 1

Bow Thrusters - speeds

Answer 1

effectiveness drops off significantly at speeds over 2 knots

Question 2

Bow Thrusters - when stopped, PP
(Rowe)

Answer 2

• most effective when stopped
• PP a beam width from the stern (Rowe pg 90)

Question 3

Bow Thrusters - effectiveness with sternway

Answer 3

• more effective than with headway
• don’t allow ship to wander too far off or develop large rate of turn

Question 4

Bow Thrusters - maintain lateral motion

Answer 4

easier to maintain to port than to starboard

Question 5

Bow Thrusters - headway generated

Answer 5

small amount of headway generated

Question 6

Bow Thrusters - 1kilowatt (kW) =
(Rowe vs. ?)

Answer 6

1.341 HP (1.351 HP, Rowe pg 89)