Towing & Ship-Assist · Gear — Bollard Pull
Bollard pull is best described as:
- AThe tug's maximum free-running speed
- BThe barge's displacement
- CThe weight of the towline
- DThe static pulling force a tug can exert on a fixed object, commonly stated in metric tonnes✓ Correct
Explanation
Bollard pull is the steady ahead (or astern) pulling force a tug develops at zero speed against a fixed point. It is the key measure of a tug's towing/assist capability and is related to, but not the same as, installed horsepower.
Authority: Towing practice; tug specifications
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