Question

(a) Draw a simple line diagram of the bow of a ship to show the position of the following components as parts of the ships mooring system: Hawse pipe, Cable stopper, Windlass and Cable lifter, Spurling pipe and Chain locker. (4)

(b) Describe the cable stopper and state its purpose (4)

(c) Show by means of a sketch how the anchor cable is attached to the ship. (4)

(d) Describe how the chain locker is drained of water, sand and mud. (4)

Answer 1

Part (a)

At the bow of the ship, you'd typically find the following components:

Hawse pipes: These are openings in the hull through which the anchor chain passes.
Cable stopper: Positioned on the deck near the hawse pipes, the cable stopper is used to secure the anchor chain in place.
Windlass: Located on the deck near the hawse pipes, the windlass is a mechanical device used to raise and lower the anchor and its chain.
Cable lifts: These are devices used to guide the anchor chain from the windlass into the chain locker below deck.
Spurling pipe: A vertical pipe leading from the windlass to the chain locker, through which the anchor chain passes.
Chain locker: Below deck, typically located near the bow, the chain locker is a compartment where the anchor chain is stowed when not in use.

Part (b)

The cable stopper is a device used to secure the anchor chain in place once the anchor has been lowered or raised. Its purpose is to prevent the anchor chain from slipping or running out unintentionally, ensuring that the anchor remains securely in position.

Part (c)

The anchor cable is typically attached to the ship using a shackle or swivel at the end of the anchor chain. This attachment point allows the anchor chain to pivot freely as the anchor is raised or lowered, preventing twisting or tangling of the chain.

Part (d)

The chain locker is drained of water, sand, and mud through a drainage system that typically includes scupper holes or drain pipes located in the bottom of the locker. These drains allow any water or debris that accumulates in the chain locker to flow out of the compartment and overboard, ensuring that the anchor chain remains clean and free of obstructions. Additionally, regular maintenance and cleaning of the chain locker are important to prevent the buildup of sediment and ensure proper drainage.

✓ Verified Model Answer (Text Solution)

At the bow of the ship, you'd typically find the following components:

The cable stopper is a device used to secure the anchor chain in place once the anchor has been lowered or raised. Its purpose is to prevent the anchor chain from slipping or running out unintentionally, ensuring that the anchor remains securely in position.

The anchor cable is typically attached to the ship using a shackle or swivel at the end of the anchor chain. This attachment point allows the anchor chain to pivot freely as the anchor is raised or lowered, preventing twisting or tangling of the chain.