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It has been almost a century since the pride of the British navy was sunk by the greatest threat to the allies that ever floated. The fateful day came when a plunging shell from Bismarck exploded the weapon magazine inside the HMS Hood. The event sent shock wave throughout the colonies' media worldwide: the admiral-class battleship, once thought to be unsinkable, was lost in the Denmark Strait. Don't worry... the fans worked tirelessly around the clock and eventually tracked it down and finally avenged the late Hood. The rest is history.

I shall cut to the chase: the British Empire decides to compete for sea dominance after Brexit causes it to hemorrhage heavily, both financially and politically. The British must recover their lost pride by constructing a state-of-the-art, heavily armed fortress that can scare the wits out of its adversary. One question: why must it have to fly?

I shall urge everyone to resist the temptation to discuss the technology behind the new man-made wonder of the world, if you must please use magic sparingly.😁

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closed as off-topic by Mołot, JDługosz, dot_Sp0T, AndreiROM, kingledion Jan 17 '17 at 14:45

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  • $\begingroup$ Something that lifts 47.430 tons of steel? $\endgroup$ – Alexander von Wernherr Jan 17 '17 at 13:51
  • $\begingroup$ Btw: Are you asking Why someone should make a century old ship fly or are you asking What does it take to make it fly? $\endgroup$ – Alexander von Wernherr Jan 17 '17 at 13:53
  • $\begingroup$ @Alexander von Wenherr: that's correct! Why must it have to be flying? That my question... $\endgroup$ – user6760 Jan 17 '17 at 13:54
  • $\begingroup$ Just to give you an idea, what you're asking: The almighty AN-225 weights only 175 tons. We're talking about a factor 271 here. $\endgroup$ – Alexander von Wernherr Jan 17 '17 at 13:56
  • $\begingroup$ @Alexander von Wernherr: 100 years after the battle of Denmark Strait(1941) pretty much sufficient time for lightweight material and revolution in shipbuilding to take place think big think ridiculously BIG my mate! $\endgroup$ – user6760 Jan 17 '17 at 14:00
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I think technology has moved past the days of sea dominance via big ships. Planes made ship to ship battles nearly obsolete and drones will be the end of them. So why make the Hood fly, you ask?

  1. Option 1 - noncombat reason. Perhaps public relations. The Hood will be painted with the Union Jack and fly around the UK as a symbol of Britain Resurgent. Guns could fire candy and chocolates.

  2. Option 2 - technology change makes flying fortress sensible. Perhaps planes themselves are the victims of drones but a monster like the Hood can withstand whatever a puny drone can dish out. Maybe the drones are autonomous and small and people need somewhere armored to hide.

I humbly suggest the Hood be lifted by fusion powered ramjets that run on air? That way, for either scenario, when the Hood comes around it will have big flaming rockets that go BWAAAAAAA.

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this was written before the magic part in the OP

Sorry, but... you don't.

An Airship one would consider as a fortress is heavy and needs uplift.

HMS Hood weighted 47.430 tons. Lets take it as a starting point.

The Hindenburg balloon took 190.000 m³ Hydrogen and was able to lift 242 tons. To lift the Hood, you'd need 200 times more Hydrogen (at least), which is 38000000m³ of Hydrogen.

Even if you'd manage to lift it, it will be extremely sluggish and would need bigger engines than currently available.

So, this is a No. Not feasible, not practical, not anything but a good targeting practise for attackers.

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It is a non-violent demonstration of an overwhelming shift in the balance of power. If the British can make a ship of that size fly, then their technology (or magic) is centuries ahead of every other nation in the world.

The Empire is reborn and all the world, once again, fears the mighty Hood.

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  • $\begingroup$ I like ur answer however I'm troubled by a certain tone that you used, care to explain what's so magical about the mighty Hood? $\endgroup$ – user6760 Jan 17 '17 at 14:11
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    $\begingroup$ It is not the Hood which is magical. It is the ability to make a battleship fly. By our current understanding of physics and the limits of any fuel's power to weight ratio, lifting a battleship into the air under its own power is simply impossible. Anyone who could do it using today's technology would either know something that no one else does, or would be guilty of witchcraft. $\endgroup$ – Henry Taylor Jan 17 '17 at 14:20

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