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A diesel submarine may also run more quietly than a nuclear submarine by turning off its engines and running on batteries—but only for a very short amount of time.
Stockholm finally committed to procure two A26s at a price equivalent to $959 million—less than a fifth the unit cost of a nuclear-powered Virginia class submarine of the U.S. Navy.
Swedish Submarines Are Among the World's Best. What's Their Secret? Hint: a silent, powerful new engine. Here's What You Need to Know: Sweden is in a busy neighborhood opposite to Russian naval bases on the Baltic Sea. For decades, submarines came in two discrete flavors: traditional diesel-electric submarines that need to surface every day or two to recharge their noisy, air-breathing diesel engines, and nuclear-powered submarines that could quietly hum along under the sea at relatively high speeds for months at a time thanks to their nuclear reactors. The downside to the nuclear-powered v...