10 Deadliest Submrines That Actually Exist

People often think that submarines are the latest invention in the military machine, with the underwater depths the last conquered frontier of the earth. You might be surprised to know the humble submarine was around 100 years before the Wright brothers famously flew the first aircraft.

Submarines have evolved over the years from crude contraptions with leather, water-filled bags to regulate depth to the super-fast, sleek, nuclear-powered war machines of today.

But when it comes to raw speed through the water, which submarines take the crown?