Well, looks like someone's been playing a bit of Supreme commander :D

What next? It flies? LOL. Pretty cool

I know this is going to be annoying, but even with guns the size of 600 mm, this puts the posiden (by the way, you spelled it wrong, it should be "poseidon") only at roughly 405 meters. This is roughly 70 meters longer than a Nimitz. However, the posiden is relatively narrow compared to the Nimitz, so it's greater length is off-set by not being as wide. Because a posiden class ship has far less room to dedicate to aircraft, it is impossible for it to carry more than a Nimtiz (80-90 aircraft). To put it another way: "Jack of all trades, master of none".

Sheesh, I changed it but Still there is many improvments that can be done wich will include room for more aircraft.

I don't think you understand. A 300mm gun is 100 mm smaller than a Iowa's gun. (Of course, they will be much more powerful, but that isn't currently relavent) When you use scaling, even assuming they were the same size as an Ipwa's guns, this ship is almost exactly the same size as a modern supercarrier. However, it will not be able to carry as many aircraft since much of the space is used for other purposes.

This ship is larger then my Golem Class Supper carrier, so it will carrier more aircraft then any other aircraft carrier. The amount of aircraft right now is little so the ship is only carring 10-20 aircraft. The Posidens main guns are 300mm High-power gauss cannons, so they make the battleships main 16in rifles nothing more then a 5in rifles. I also thought of having it as a submarine so it is not a high value target for enemy aircraft. Don't for get that this ship will take 2-3 months to construct. The next one that is giong to be finished will be given to Vallkirimal_ as a gift for the alliance that we made, if you want the 3rd one I can give to you as a trade item. What do you think. Also what should I do next, I have no build experiance in hard suits, little experiance in making aircraft, good amount in making tanks and other ground based vehicls, and I am an expert on Sea-bound ship and star ships.

First off, great job on the build, it's a good size and has a decent quality of hull shaping. However, I do take issue with it's ability to carry 300 aircraft. Based off of scaling from the largest turrets (assuming they are the roughly same size as a WW2 Battleship's turrets), this is bassically the same size as a modern super carrier. And because it doesn't have nearly as much space to carry aircraft as a conventional carrier, something like this could only carry around 50 aircraft at best.

This is very nice, I love the shape of it. That being said, I have a problem with the caliber of guns. First off, 80mm CIWS, that's used to shoot down missiles, no? You're going to want high fire rate for that, and an 80mm gun going 4000rpm is unrealistic, unsustainable, and altogether overkill. You 100mm AA guns have the same flaw. You want high fire rate to keep up with fast moving targets. Something in the range of 20-60mm. Missiles are ways better for AA. I find no fault with your big guns, but I still feel missiles could accomplish the job more easily. Anyhooha, great build!

That is massive, I like the varied turrets, and the shaping looks good too.