We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is a Q-Max?

By Maggie J. Hall
Updated May 23, 2024
Our promise to you
WikiMotors is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WikiMotors, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The Q-Max, also known as the Qatar Maximum, is a liquid natural gas tanker ship that delivers natural gas to countries all over the world. These massive vessels may be the largest sailing ships on the planet. The specially designed technology used to build the ships provides the most economical means of transporting the cargo while causing minimal disruption to the marine environment.

"Qatar" refers to the Qatar Gas Transport Company that employs the Q-Max ships for deliveries. "Maximum" means the ship is the maximum sized vessel capable of docking at liquid natural gas, or LNG terminals. The company reports the ship measurements as 1132 feet (345 meters) long, which is longer than three football fields lying end to end. The ship is 177 feet (53.8 meters) wide and 114 feet (34.7 meters) tall from the bottom of the boat to the top of the masthead. The height of the ship is comparable to that of a 20-story building. The vessel travels at speeds of up to 19.5 knots or 0.4 miles per hour (0.7 kilometers per hour).

Inside the hull, the Q-Max contains five large cargo areas. Each area measures 157 feet (48 meters) wide, 91 feet (28 meters) tall, and 190 feet (58 meters) long. The specially lined stainless steel/nickel alloy tanks contract and expand to accommodate the cargo. Each Q-Max ship can carry 9,400,000 cubic feet (266,000 cubic meters) of LNG. The company suggests that this amount of fuel is comparable to the amount required to power 70,000 U.S. homes for a year. The largest ship prior to the Q-Max, the Q-Flex, had a maximum capacity of 7,633,283 cubic feet (217,000 cubic meters).

The hull of each ship has a special silicon coating, which improves the performance and speed of the vessel, but also protects the marine environment from toxins. Each cargo tank also contains piping leading to the on-deck liquefaction plant. As the natural gas reverts to a gaseous state, the system traps the gas, reliquifies and returns the liquid back to the cargo tank. Two slow speed diesel engines, propellers and rudders run each Q-Max.

This type of engine is reportedly more thermally efficient and requires less fuel than older steam turbine engines. The ship supposedly requires 40% less energy with 30% fewer emissions. The Q-Max also has specially designed back-up generators, capable of running the ship and systems in the event of mechanical failure. These LNG tankers are equipped with state of the art fire fighting systems that employ foam and fog water for fire fighting without the need for carbon dioxide-based systems.

WikiMotors is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.

WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.