🔍 Key Concepts

• Typical role of a single tug when assisting a large single-screw ship alongside in normal (non-emergency) conditions • Which end of the ship is harder to control at low speed on a single-screw vessel • Where a tug can work safely and effectively without getting trapped between the ship and the pier

💭 Think About

• Think about which part of a single-screw ship tends to swing the most and be hardest to control when going very slow ahead or astern. • Ask yourself: if you only have one tug, where will it do the most good in helping you land gently and keep control? • Consider which side (inboard or offshore) lets the tug push or pull without being squeezed or losing room to maneuver.

✅ Before You Answer

• Identify which end of a single-screw vessel is less controlled by the rudder at dead slow speed. • Check which option places the tug on the offshore side so it has room to work safely. • Confirm the tug’s main role in normal docking: is it to control alignment and swing of a particular end, or to tow the whole ship in like a towboat?