I spent a few days working on this beast of a ship. It might not be my largest, but the construction methods have vastly improved. What it lacks in looks, it more than makes up for with functionality. The hull and armor are significantly reinforced over my previous designs, and this ship is capable of sustaining multiple direct hits from a standard TNT cannon from nearly any angle without a hull breach. All of it's weapons are, of course, fully functional, aside from the fact that the turrets cannot turn without the use of mods.
propulsion systems: 6 x 631 series vectoring engines
defenses: durable hull layered with various blast resistant materials 2-5 meters thick, horizontal surfaces protected by shell of stonewalls, vertical surfaces protected by halfslab armor (dorsal and ventral), windows reinforced with iron bars to improve blast resistance
weapon systems: spinal dual projectile long range cannon, 2 x superfiring armored twin cannon turrets, 2 dual broadside mounted short range cannons, 2 x dual bomb/ spawning chutes, centerline mounted quad gun and flack mortar turret, 3 x dual autogun emplacements, 6 x fortified gun turrets, 10 x guardian laser turrets, multiple fortified lookout / sniping positions
additional systems: 2 x fighter launch bays, flattop construction facility for assembling and repairing small warships
I have my own realm server up and running, and would be more than happy to play with anyone as long as they agree to play nice and not blow up stuff that is not theirs. Attractions include airship wars, fleets of giant spaceships, lots of TNT cannons, and at least one giant mecha. Planned features include a spleef area, a fast travel nether portal system, fortress wars and survival mode gameplay.
It's been ages since i've gotten the chance to screw around in Minecraft... I almost forgot how much fun it is.