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Navies around the world engage in surface and sub-surface military operations at sea. Learn how aircraft carriers, carrier battle groups and next generation destroyers work.

How Aircraft Carriers Work

The crew of the USS Abraham Lincoln returned home this week, after a wearying 10 months at sea. Take a tour of the U.S. military's most monumental machines, from flight deck to hangar bay to engine room.

Ridiculous History: The U.S. Navy Used Dirigibles as Flying Aircraft Carriers

The USS Akron and the USS Macon were Navy flying aircraft carriers in the 1930s. Learn more about these dirigibles in this HowStuffWorks Now article. See more »

Submarine Pictures

This submarine image gallery will give you an inside look into one of the Navy's most sophisticated war machines. Check out these submarine pictures. See more »

How Nuclear Submarines Work

Nuclear submarines are powered by nuclear reactors and may carry nuclear weapons. Read about nuclear submarines and how they changed the world's oceans forever. See more »

How the Zumwalt Class Destroyer Works

The Zumwalt is the military's class of next-generation destroyers. Find out how the Zumwalt class destroyer works and learn about Zumwalt technology. See more »

How the FSF-1 Sea Fighter Works

Nations are facing a more guerilla-style warfare – even at sea, and the equipment must evolve to meet new demands. Enter the Sea Fighter. Learn about this experimental, high-speed, "invisible" ship. See more »

How Carrier Battle Groups Work

How does one of the most valuable pieces of military equipment travel around the world? When they move, an entire fleet of protective air and water craft moves with them. Learn all about carrier battle groups. See more »

How Aircraft Carriers Work

Aircraft carriers are ships outfitted with flight decks to launch and land airplanes. Learn about the parts of aircraft carriers and aircraft carrier crews. See more »

How Photonics Masts Will Work

The U.S. Navy's new subs will use photonics masts instead of periscopes. Learn how these imaging devices will work. See more »