WIll Kempe Ms. Herring 7th Grade ELA November 14, 2017 How do submarines work? The only way subs move is by ballast tanks, trim tanks, and other types of huge tanks. Subs also use planes to guide their direction. A sub’s plane is the most important part of the sub. Subs have two use the biggest ballast tanks in the world. If subs don’t use the biggest ballast tank in the world then it is possible that you can run out of gas at the bottom of the ocean. A sub is so much different than ships because they are able to go underwater without sinking. A sub can control its buoyancy so that it can not sink. If subs want to go underwater or up to the surface, they will need to change the water in their ballast tanks into the air. If you are trying to go underwater then you have to take the water in your ballast tanks, and turn it into air eargo you will be able to go underwater and come back to the surface. …show more content…
A nuclear sub carries and uses nuclear reactors. Nuclear reactors are very dangerous they can cause a big explosion. The nuclear reactor can also reverse thrust of the propeller shaft. Subs need a lot of electricity to power stuff like props, and equipment and stuff like that. If subs don't have a lot of electricity then they will not move and the stuff like props, equipment, and everything will not do anything especially not move or do what they're supposed to. Subs have to use diesel engines to power everything so that you don't run out of fuel or electricity or anything like