Container ship
SLACK LINE
Dynamic bollard pull
0 tActual speed8.0 kn
Heading change0.0°
Braking force0 t
Steering force0 t
Braking 100%Steering 0%
Rotate hull
Guided challenge · Aft braking
Brake the vessel from 8 to 5 knots.
Step 1 of 3
Controls
↑ ↓ ← → Move tug · A / D Rotate hull · P Pause · F Full screen
Drag the left control to move. Hold the curved arrows to rotate the hull.
Move away to tension the towline. Turn the hull across the flow to increase force. The line angle decides how that force is split: straight aft is 100% braking, 45° is 50% braking and 50% steering, abeam is 100% steering. The arrow shows the force on the ship.
Illustrative force model, capped at the 180 t dynamic bollard pull of Multratug 32. Line extension shows slack to full reach, not a safe working load.