An ironclad is a wooden-hulled water-going vessel which is covered in whole or in part by iron, serving as armor. Since the hull is clad in iron, it was called an ironclad ship.
A steel-hulled ship floats on water due to the principle of buoyancy, which states that an object will float if it displaces an amount of water equal to its weight. The shape of the hull, along with its size and weight, enable the ship to displace enough water to counteract its own weight and remain afloat.
Technically, the first steel hulled ship was the French warship 'Redoubtable ' in 1876. However, iron hulled ships had been used 30 years before this.
a ship maker.
About 34kilograms
wheel
An old wooden ship.
That type of ship is called a "Junk".
You're probably asking about the ironclads.The ships with metal plates on their side were introduced in the 20th century. They can take on heavier payloads and that makes the fit for merchant and warfare purposes. In warfare, they are harder to sink than the predecessors which had wooden hulls.
The mast.
a junk
Professionally built mean by did experts which is tested at prove to perfect