When you see cruise ships today, they come off as some of the most advanced technology we have. So hearing that cruise ships still use what may be considered ancient technology – such as anchors – may come as a surprise. 

Anchors are still an essential part of a ship’s operation. This leads to several questions, including what exactly is the purpose, and how big is the anchor of a cruise ship? If these are your questions, you’ve come to the right place to find answers.

Keep reading to learn how big a cruise ship anchor is and other important frequently asked questions. 

What Is a Cruise Ship Anchor?

A cruise ship anchor is a device that keeps a vessel in place. The anchor is lowered from the vessel using a heavy anchor chain and digs into the seabed to ensure the ship stays stationary in the water.

Cruise ship anchors are used anytime a vessel needs to be stationary. For example, if a ship cannot pull up to the dock due to shallow waters, it might have to stop a little away from the shore to let passengers off onto boats that will transfer them.

Another example is when some ships had to remain at sea during the beginning of the COVID-19 pandemic in 2020. These ships used their anchors to stay stationary as they could not dock immediately.

How Big Is a Cruise Ship Anchor?

Cruise ship anchors are much larger than you think, especially considering what an important part they play in the vessel’s stability.

They are typically 10 to 20 feet long, 15 to 20 feet wide, and weigh anywhere from 10 to 20 tons. That’s about 20,000 to 40,000 pounds! For perspective, one elephant weighs anywhere from 2 to 7 tons.

Why Are Cruise Ship Anchors So Big?

The reason for the massive size of these anchors is that they have to be heavy enough to keep the ship stable and stationary when the ship needs to be stopped. The weight of the anchor chain plays a significant factor in the total weight of the anchor and keeps the ship stable.

The anchor itself mainly serves to keep the chain and ship in place. For this reason, in most cases, the bigger the ship, the bigger the anchor. You can imagine how big an anchor a ship like Royal Caribbean’s Wonder of the Seas might have!

Do Cruise Ships Have More Than One Anchor?

Most vessels have an anchor on both the port and starboard sides. Both anchors are found at the front of the ship. However, they are usually deployed at different times.

While there are special circumstances where using two anchors can be beneficial, the reason for having two is mainly to have a backup in case one fails at the moment. 

Do All Cruise Ships Have Anchors?

In general, you’ll still see anchors on every vessel. However, some modern cruise ships primarily use dynamic positions, which means they use propulsion and thrusters to maintain a steady position.

While this method is more straightforward and versatile for ships, it also uses up more fuel and comes at a high cost. So they are here to stay for the foreseeable future. 

What are Cruise Ship Anchors Made of?

They are usually made of heavy metal. Considering that they’re meant to spend large amounts of time in the water, they use metals resistant to long-term corrosion damage. They may also be made from fiber-reinforced composites or polymers such as carbon fiber.

Wrap-Up

To recap, cruise ship anchors weigh anywhere from 10 to 20 tons, depending on the size of the vessel. The chain that the anchor is attached to does a lot of work to keep the ship stable when it needs to remain stationary.

Read Also: Cruise Ship Propeller Size – How Big Are They?

Even if you have never wondered about cruise ship anchoring equipment, it’s good to have this context when embarking on your next cruise. You might even glimpse the anchor in use if you know where to look!

Most people don’t worry about fuel outside of filling up the gas tank in their car. However, in a world full of environmental crises, it helps to consider fuel consumption in other areas of our lives. 

If you’re an avid cruiser, have you ever thought about what type of fuel cruise ships use? If not, it might be worth exploring the answer. Luckily, you’ll find it right here.

This article will answer that question and others on modern cruise ship fuel use. 

What Fuel Do Cruise Ships Use?

The simple answer is diesel. Most cruise ships use a special type of diesel called marine diesel oil (MDO) which is made specifically for marine vessels such as cruise ships. While controversial, diesel continues to be used by most cruise ships today.

However, while diesel does have adverse effects on the environment, some cruise lines are working towards improving their diesel consumption and exploring other alternatives.

For example, Royal Caribbean is trying to move towards sustainability by using renewable fuel on select ships, including the Navigator of the Seas. Renewable diesel is produced by the hydroprocessing of fats, vegetable oils, and waste cooking oils. The results are chemically identical to standard diesel, with significantly fewer emissions than other maritime fuels.

Celebrity Cruises has also joined in on the alternative fuel evolution, with an upcoming ship in its Edge Series that will include a new engine model, as well as storage and delivery systems that will enhance the ship’s fuel flexibility. This new ship will be able to use three types of fuel, including methanol, which is better for the environment.

Let’s check out some other alternatives to diesel that cruise lines are using – both good and bad.

Heavy Fuel Oil (HFO)

Traditional cruise ships rely heavily on heavy fuel oil, also known as bunker fuel. This oil is thick, black, and has a tar-like consistency. 

The low cost of heavy fuel oil has made it the primary fuel source for marine vessel propulsion – such as cruise ships. However, there is widespread criticism of the use of this fuel due to the damage it causes to the environment through oil spills and emissions of toxic compounds. That said, it continues to be commonly used in cruise ships today, often blended with diesel. 

Liquified Natural Gas (LNG)

Liquified natural gas has emerged as a more environmentally friendly alternative energy source for cruise ships. 

LNG is a natural gas extracted from the earth’s core that has been cooled down to liquid form. LNG fuel is mostly methane but is referred to as LNG once it has been liquified through pressurization or refrigeration.

LNG fuel is colorless, odorless, non-toxic, and cleaner than petroleum or other fuels. Since it burns clean, LNG has the power to reduce greenhouse gas emissions significantly and therefore has a low environmental impact.

The only downside is that LNG is finite since it’s a fossil fuel, and we may not have enough to power us through for more than the next 50 years. Moreover, it is more expensive to produce than heavy fuel oil or diesel. Royal Caribbean has a series of upcoming LNG cruise ships, including the Icon of the Seas and Utopia of the Seas.

Cruise Ship Fuel Types FAQ

Conclusion: The Future of Cruise Ship Fuel

Hopefully, you’ve learned more than what fuel cruise ships use and have started to think about the future of cruise line fuel. 

Experts claim that electricity may lead the way for future fuel needs. While electricity is already taking over our everyday lives with electric vehicles, the cruise industry may be a little behind.

Read Also: How Much Does it Cost to Fuel a Cruise Ship?

Cruise lines are trying to minimize their carbon footprints and find alternative fuels to operate their ships. This may be a slow process, but hopefully, they’ll one day find a more environmentally friendly way for passengers to enjoy their cruises.