I'd like to know what the black tubes are on the sides.
cheers
James
This is all the info on the sub.
The submarine was made of 5-millimeter thick boiler iron, and its egg-shaped body was 6 meters long, 2.25 meters wide and 1.85 meters high. There were two short towers of 1 meter high and 0.8 meter in diameter for people to get into, and they had firm metal lids, which were very tightly pressed to the top of the towers. In the middle of its body the submarine had a hatch for loading solid ballast and materials – it was locked the way it was with the small towers. Inside the submarine he installed special ballast tanks, which were filled with water and didn’t let the machine get up. Water got inside the tanks through special hydrants and was removed by a displacement pump.
To move the submarine under water the inventor provided it with special oars (paddlers), which were placed outside the body, two of them on each side. The device operated on the same principle as ducks webbed feet – when the submarine was moving backwards they were folded, and when it was pushed forth, they got unfolded.
To drive the submarine in the horizontal plane Schilder designed a vertical fishtail rudder. The stern tower had a look-see, a primitive copper periscope with two reflecting mirrors to observe the skyline. It could get up and down and be totally covered with water.
The machine had portholes in the top so that it wasn’t completely dark inside the body. It could get down under water up to 13 meters deep, and as there was a an extension pipe for getting fresh air when the submarine was just half in water, it was almost impossible for marines inside it to die of suffocation.
The submarine armaments were designed to ruin wooden tall ships of that period. It had a mine to be thrown at the enemy’s vessel and primitive racke