A little history behind this ship, I've been designing the Lenxton since 2003 and finally came around to this design. She is the flag ship of the Earth Forces in my story and she does have many tricks up her sleeve.
She is a MASSIVE ship, so she's prone to stay behind from the main fleet as much as it can but it can certainly defend itself. The two engines on the side (there's another set on the opposite side of the ship) are gyro, so if the ship needs more than just a little nudge to move, they will certainly get the job done. I may also add, it has no landing capabilities, built in space and meant for space combat as well as transportation across the sea of space.
The total length, I'm still working on the specifications, but it's just shy of coming in length of the Super Star Destroyer from Star Wars Episode V: Empire Strikes Back.