Step Aboard the Nimitz-Class Aircraft Carrier: The Reason Why the U.S. Navy Is Unstoppable

Giant aircraft carriers have become synonymous with U.S. military power, but many do not realize just how exceptional these vessels are.

These floating air bases are loaded with dozens of advanced war planes and can launch up to 150 sorties per day. No other nation has deployed a nuclear-powered supercarriers of comparable size and striking power—and the United States Navy operates eleven of them.

All but one of those carriers belongs to the Nimitz-class, a design which until 2017 was the largest vessel ever built, with hulking displacement exceeding 113,000 tons loaded and a ship’s company of 3,200.

Named after Chester Nimitz, legendary commander of U.S. Pacific forces during World War II, the Nimitz was then only the United States’ second nuclear-powered carrier when she was commissioned in 1975 with hull number CVN-68.

The preceding USS Enterprise employed eight nuclear reactors, but the Nimitz generated nearly as much power (190 megawatts) using just two Westinghouse A4W reactors to turn four steam turbines. Those turbines crank four bronze propellers in the stern that can propel the 330-meter long vessel—that’s longer than three football fields—up to speeds of thirty knots (thirty-five miles per hour), adequate to outrun most diesel-electric submarines. The reactors only require refueling every twenty years, thought that process is lengthy, expensive, and usually combined with a major overhaul. Hillary’s Biggest Embarrassment Has Finally Leaked In the thirty-eight years between 1968 and 2006, ten of the gargantuan flattops were built in a huge 662-meter long drydock in Newport News, Virginia, each one introducing improvements over its predecessor.

The third vessel, Carl Vinson, featured better anti-submarine capabilities reflecting a late Cold War shift in Navy doctrine back to sea-control.

Then the Theodore Roosevelt and its four successors were built using new modular construction techniques, reducing construction time by sixteen months, and had two-and-a-half inches of Kevlar armor added to key areas.

Finally, the Ronald Reagan and George H. W. Bush introduced a swelled “bulbous bow” to decrease wave resistance, improved defenses and a reduced radar cross section.

The Nimitzes’ angled flight deck towers fifty-seven feet over sea level and spans 4.5 acres, allowing one aircraft to land at the same time as another takes off using Catapult Assisted Takeoff and Barrier-Assisted Recovery, or CATOBAR, in which a steam catapult helps propel heavily-laden aircraft off the flight deck while three or four tripe wires stand ready to snag an airplane’s arresting hook while it approaches. This allows for the operation of fast and heavily loaded jets, and it facilitates the ability to surge aircraft launch and recovery to very high tempos in critical combat scenarios.

For comparison, carriers in service with Russia, China and India featured an upcurved “ski-jump” ramp which significantly limits aircraft takeoff weight, while other navies rely on lower-performing vertical-takeoff jump jets.

Only one other active carrier, the French forty-eight-thousand-ton Charles De Gaulle, currently uses CATOBAR takeoff, though China and India are building CATOBAR-equipped carriers.

Most Nimitz-class vessels feature four catapults and arrestor wires. Four huge elevators in the side of the carrier then transfer aircraft to hangars in […]

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