They are about 20ft in length.
The first submarine was about 46 feet in length and assembled in Barcelona, Spain. The first successful launch of this submarine was in 1864 and held a crew of two people.
Big Bigger Biggest - 2008 Submarine 2-2 was released on: UK: 4 August 2009 USA: 19 November 2009
Submarine ballast tanks and their number depend entirely on the type of boat and its submerged displacement capacity. In general though, they're pretty big, on average about 6000 square feet or more.
Gigantor - 1964 The Submarine Base 1-15 was released on: USA: 1964
world's largest submarine sandwich is 592 feet and 1 inch
Elden Auker went by Big Six, and Submarine.
Submarine - 1972 VG was released on: USA: 1 May 1972
1. Both types of vessels can sink; however, only a submarine can return to the surface afterward. 2. One ship is a target; the other is a submarine.
It was a submarine in World War 1 or 2
Uss nautilus
World War 1