Where would the Germans have built or docked such a ship? Johnny Horton would have written a ballad and Robert Ballard would be mounting an expedition to find it. The Fuhrer never lacked for imagination.

Such a project could only have been built pre-war and would have been an incredible undertaking. Krupp would have had a hard time making the 8 guns while the shipyard (Blohm und Voss) would have had to use modular assembly of the hull, then the armored decks stacked and then the deck, superstructures, main and secondary turrets, and then add all the AAA and radar equipment. It would have been colossal and there would be no single battleship nor group of ships able to penetrate the armor, the belt, nor the bottom. Aircraft carriers (plural) would have had to send waves of aircraft to drop bombs on it and yet the fire from the 100 guns of Der Fuhrer would have blackened out the sky AND the ship could launch at least 12 Ar-196 seaplanes to counter plus 12 attack helos of Fl-282C with armored cockpit, stubby wing gunpods firing 4800 rpm, or firing 55mm R4M rockets! Even if a huge bomb like the Tallboy or Grandslam hit it (hypothetical b/c the target would be moving unlike a fixed ground target) the decks below the main deck were also heavily armored and layered. One single salvo from one turret of 800mm guns firing two 5 ton projectiles would be enough to sink any major warship and Der Fuhrer would have had 8 of those guns PLUS another 12x 240mm guns as secondary. How would any enemy vessel or aircraft sink a 700,000 ton Megawarship??? Docking and replenishing this behemoth would have been troublesome too!!! The largest vessel ever built was the Supertanker Knock Nelvis at 650,000 tons! Der Fuhrer would have been larger and heavier. Note that the simple version had no torpedo tubes but a second version added twin 533mm forward torpedo tubes as well!!!