What military vehicle can go where other military vehicles cannot go? It is a submarine. They sail quietly under the sea, ready when necessary to attack. One of the Navy's largest subs is the Jimmy Carter at 453 feet long. Submarines are shaped like bullets which help them glide through the water. Subs with nuclear-powered engines can run fifteen years before needing more fuel. The sub's mission is limited by the amount of food it can carry for the crew. Subs carry ballast tanks filled with air or water. To make the sub dive, water is rushed into the tanks. To make the sub rise, water is released. Navy subs may launch a torpedo and if it misses its target, it turns around and fires again. They can fire missiles at targets on land l,000 miles away. Periscopes and cameras allow sailors to see outside the sub. Subs use sonar to locate ships, like bats use sonar to find their food. Spaces are small for housing the 140 sailors who live on the sub. They live on the sub for months at a time. Subs are equipped to take salt out of ocean water so the sailors can drink it. The limited text and clear photographs make this thirty-two-page, hardback book informative and interesting. The "Glossary," "Read More" and "Internet Sites" sections help the reader understand this book on Navy submarines. There are six titles in this set.
Thomas K. Adamson has written dozens of nonfiction books for kids on sports, space, math, and more. He lives in Sioux Falls, South Dakota, with his wife and two sons. He likes reading and playing ball with his boys. He also likes to check scores and stats on his phone.