Surrounded by steel, the earth's magnetic field wouldn't penetrate.
They're not - all submarines use both standard and electronic compasses for navigation.
you cant you need a mod
Magnetic compasses become ineffective in submarines because surrounding steel hulls and electrical equipment distort Earth’s magnetic field, causing inaccurate readings, especially when submerged deep underwater for reliable underwater navigation systems.
A magnetic compass is not useful for navigating a submarine primarily because submarines operate underwater, where the Earth's magnetic field can be distorted by the surrounding water and the metal structure of the vessel itself. Additionally, the compass relies on detecting magnetic north, which becomes unreliable due to the varying magnetic influences underwater. Instead, submarines typically use inertial navigation systems, GPS (when surfaced), and other advanced navigation technologies to determine their position and course accurately.
how they use the compass it so they won't get lost
A magnetic compass does. Though there are other types of compass that do not
Compass
you cant really because the magnet in the compass controls and direct it the way it needs to go
you press Q AND X to use submarine reflection. you press Q and X to use submarine reflection.
we use the pencil, protractor and a compass. we use the pencil, protractor and a compass.
You use a compass rose, in case you get lost. A compass rose, gives you all the cardinal directions.
"The submarine fired a torpedo at the large ship."