well a lot of fine tuning and about 2 hours later TADAAAAAA!!! this was originally gunna be a jedi star fighter (hense the size) but the first part I made looked to good not to be a venator class star destroyer!
«««instructions»»»

(starting at runway)
throttle to 100% wait a few seconds then left slider in between the upper 1st and 2nd notch

(starting from air) left slider slider in between 1st and 2nd notch then throttle up

«««tips»»»
make sure that the left slider is all the way up before you go into hyper speed.
use left slider as trim.
if it gets all shaky when you go into hyper speed try high physics settings.

And now, the moment you've aaaaall been waiting (drum roll please) Wikipediaaaaaaaa.....

The Venator-class Star Destroyer, also known as a Republic attack cruiser or Jedi Cruiser, was a dagger-shaped capital ship used by the Galactic Republic for ship-to-ship combat against the Confederacy of Independent Systems during the Clone Wars.[4] Having eclipsed the Republic's diplomatic frigate, the attack cruiser faced the Separatist dreadnoughts in some of the most well-known battles of the Clone Wars, including those of Sullust, Christophsis and Coruscant.[8]

Early in the war, the Separatists created the Malevolence, a heavy cruiser that could disable the electronic and power systems of a Republic attack cruiser with its powerful ion cannon.[9]
The design of the Republic attack cruiser ultimately evolved into the similarly wedge-shaped Imperial Star Destroyer, the signature battleship of the Galactic Empire.[10] As of the Campaign at Salient, during which Venator-class Star Destroyers reassigned from Telos deployed ARC-170 starfighters to assist Governor Wilhuff Tarkin and the Executrix, the vessel was considered an older-generation model.[11] However, at least one Venator-class was stationed at the Anthan Prime Orbital Dockyard a few months after Battle of Yavin.[12]