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Christina Shaw / US Navy The submarines are nearly 400 feet long and have been in service since 2003 US Navy The ships were designed to function well in both deep sea and low-depth waters David Nagle / US Navy So far, nine have entered service — here is Cheryl McGuiness, the widow of one of the pilots killed on 9/11, christening the USS New Hampshire John Narewski / US Navy Here are the USS Virginia's engines, which powers a pump-jet propulsor rather than a conventional propeller US Navy / Wikimedia Commons This design cuts back on corrosive damage and also makes the ship stealthier Tosaka / wikimedia The engine room, near the sub's stern, is the place where power from the SG9 nuclear reactor core drives the ship to nearly 32 mph when it's submerged James Pinsky / US Navy This hallway — extending from the engine room, over the reactor and through the living habitat in the center of the ship — is dark so that sailors can sleep James Pinsky / US Navy The ship has an airlock chamber with room for 9 SEALs James Pinsky / US Navy The SEALs can exit the sub while its underwater by passing through this airlock Andrew McKaskle / US Navy This lock-out chamber is in the center of the ship Andrew McKaskle / US Navy Submariners eat well — the quality of the food is designed to offset the stress and burden of living underwater for months at a time Roadell Hickman / US Navy As one sailor said, "It's like having comfort food 24-hours a day Jennifer A Villalovos / US Navy Going further toward the bow of the sub, the command center is directly beneath the main sail of the sub and where the navigators do their work Kevin S O'Brien / US Navy The command center on the Virginia subs are much more spacious compared previous submarines Kevin O'Brien / US Navy The command center doesn't have to be directly under the deck of the ship in the Virginia-class subs because there isn't a periscope. Peter Lawlor / US Navy The monitor the Commander is looking at is this is the sub's "periscope" — a state-of-the-art photonics system, which enables real time imaging that more than one person can see at a time Jeremy Lambert / US Navy The Virginia eliminates the traditional helmsman, planesman, chief of the watch and diving officer by combining them into two stations manned by two officers James Pinsky / US Navy The subs are equipped with a spherical sonar array that scans a full 360-degrees Jennifer Villalovos / US Navy The Virginia subs carry a full crew of 134 sailors Kevin O'Brien / US Navy Despite computer navigation systems all routes are plotted manually as well Roadell Hickman / US Navy Down below the command center is the torpedo room, where it is possible to set up temporary bunks for special operations team James Pinsky / US Navy The ships carry up to 12 vertical launch tomahawk missiles and 38 torpedoes Kevin O'Brien / US Navy Here an officer on the USS Texas fires water through the torpedo tubes as part of a test Roadell Hickman / US Navy The subs were designed to host the defunct Advanced SEAL Delivery system, a midget submarine that transported the Navy SEALs from the sub to their mission Jennifer Villalovos / US Navy The only thing in front of the torpedo room is the bow of the submarine, which contains sonar equipment and shielding designed to make the sub stealthier James Pinsky / US Navy Even as they are being built, new improvements and upgrades are being added into the design of the submarines US Navy Read more: http://www.businessinsider.com/here-is-why-the-navy-is-betting-it-all-on-the-high-tech-virginia-class-submarine-2012-7?op=1#ixzz26ysk1XxD Your email settings: Individual Email|Traditional Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe