No. It is not.
The Russian Typhoon Class SLBM Sub.
Big Bigger Biggest - 2008 Submarine 2-2 was released on: UK: 4 August 2009 USA: 19 November 2009
German submarine ;
David Bushnell
Lusitania wasn't a German submarine, it was an American merchant ship that was sunk by German submarines.
The Russian missile launching submarine, Typhoon Class, is slightly bigger than the USA missile launching submarine, Trident Class.
The high profile sandwhich constructor. See Who made the biggest submarine sanwhich ever?
Yes, Sarah Mather, an African American, is credited as the inventor of the submarine telescope. She patented this invention in 1845, which allowed for underwater exploration and observation without the need to surface.
The first submarine was called the Turtle or American Turtle. It was a one man submarine and powered like a bicycle. It was designed to attach explosive devices to the hulls of British ships. All such attempts failed.
The turtle.
The biggest submarine animal is of-course the Blue whale. This is also the largest animal of all animals.