Different Vessel Types
A deep dive into different types of vessels including container ships, roro ships, icebreaker ships, cargo ships, ferries, superyachts, oil tankers and more!
The merchant navy is a vast fleet of ships and there is a lot more to it than just cargo and container ships. Indeed, many types of vessels are divided into subcategories according to their size and where they are able to sail. One of these categories is the Supramax class of ships. But what does Supramax even mean? Let’s take a look!
A cruise ship is a passenger ship that sails to a number of different destinations with the pleasure of the voyage being entirely the point. Cruise ships are synonymous with being luxury vessels and their amenities, activities, drinking and dining options, and entertainment are all created with the passenger’s experience in mind.
Some crane vessels are designed and built with a standard monohull - just like a conventional cargo ship. Having said that, the really big crane ships are usually either built to be semi-submersible or are designed as a catamaran - i.e. with twin hulls. This gives them extra stability.
To understand the basic principle of what a crane ship does, think of a normal crane that is used in land-based construction or cargo operations in a port. The only real difference is that crane vessels are, obviously, used at sea whilst the former is used on dry land.
Whilst a crane ship's name might be self-explanatory, there is quite a lot more to know about crane vessels. And as this article is one in a series of blog posts about different types of ships and vessels, it’s only right that we take a closer look at this hardworking ship!
A fully pressurized gas carrier is equipped with either two or three steel tanks that are either cylindrical or spherical in shape. They are typically used for transporting gasses between smaller gas terminals that are closer together. This is due to the thickness of the steel used to build the tank, which increases the ship’s weight, making it unsuitable for longer voyages.
As you have probably guessed from its name, a crane vessel - also known as a floating crane, crane ship or sometimes a heavy lift vessel - is an ocean-going vessel which has one or more cranes mounted on it. These gigantic ships are incredibly powerful and can handle extremely heavy loads. A crane vessel’s main purpose is to assist in the construction of offshore structures, as well as conduct salvage operations.
When we think of the merchant marines / merchant navy, container ships and cargo ships are usually the first vessels that spring to mind. However there is a wealth of other vessels that ply their trade across the world’s oceans, seas and even inland waterways. And among the car carriers, heavy lift vessels / crane vessels and bulk carriers, you may spot the odd gas carrier or gas tanker.
Gas carriers have built in tankers which are normally either cylindrical or spherical in shape, although prismatic tankers are now also becoming commonplace. The capacity of a gas carrier can range from anything from 3,500 to 200,000+ m3, depending on its cargo and usage.