So... I don't need to make it angular? But what would I do then? I'm sorry this is just kind of confusing for me.
Compare the F117 and the B2. The F117 is angular with lots of flat planes, and this is in essence what current generation stealth ships are doing. The B2 on the other hand is smooth and curvy and if I'm not mistaken, even more stealthy than the F117, at least for its size. Now, whether it's practical, or even possible, to build a stealth ship along the same lines is something I don't know, indeed I wouldn't even be surprised if no-one outside the relevant R&D environments knows.
Anyway, with current generation stealth, angular seems to be the only way to go.
As for FFGNs, DDGNs and CGNs, I'm not certain that nuclear propulsion is worth it for a couple of reasons.
1: Nuclear reactors are big and heavy compared to gas turbines, and their max output isn't higher. Their sustained max output, however, is.
2: Nuclear reactors require significantly more out of the machinery spaces than a gas turbine. Not only do they need to be shielded against radiation, they also require far more in way of cooling and other auxiliary systems.
3: They are very manpower and maintenance intensive.
4: Overseas basing is going to be a real problem. It's one thing to allow someone to park a single 100.000 ton ship in your harbour, quite something else to allow him to park five or six 5.000-10.000 ton ships.
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