Star Destroyer

"Commence firing on that star!...Damn no effect."

- Imp captain using a futile attempt to destroy a star.

Star Destroyers or Imperial Star Destroyer were  Massive  objects designed to be the main backbone of the Imperial fleet. When Darth Vader realized they did not destroy stars he killed the creators; however, in terms of aesthetic value as a ship, he loved them, so he had a ton built. The Imperial Star Destroyer was the Symbol of the Empires ability to build thousands of huge ships that seemed to be able to get destroyed by a squadron of Rebel Alliance Fighters.

Construction
"Oh no problem these babies are easy to make, just lay a 2 km piece of sheet metal and cut a triangle should be no problem."

- Palpatine's hired Contractor.

During the end of the Clone Wars Emperor Palpatine needed to replace the Republics cooler and much better Venator-class of Star Destroyers. Since the beginning of the every single war that ever happened in The Galaxy warships were based on triangular shapes and pyramid structures. This shape seemed to fit Palpatine and seemed that he wanted the Star Destroyer to take a simple shape so he could instill fear to all the people that see the ship. He wanted people to see a Triangle flag hanging outside there house and say "Damn, a Star Destroyer". Palpatine then began production of thousands of these ships from 1,600 meters long to about half the size wide. They were Massive.

Usage
From stopping Rebel Blockade runners or for simply PWNin the scales out of The Mon Cal ships, Star destroyers were part of the Empires unique arsenal. Star Destroyers served as the rally point for TIE fighters when the Rebels pretty much owned them. Hell if you put pepperoni on this ship it still serve as a problem for the rebels. They packed quite a punch, didn't you see  Star Wars Episode IV  ? I mean it took at least 25 minutes to catch the Tantative IV, Whoopty fucking Doo. The Turbolasers seemed out of place on these ships because they never survived to get close enough to the Mon Cal Ships. I mean the turbolasers couldn't even angle to shoot off the front, Wtf they weren't crummy Pirate Ships. So pretty much the ships had to turn sideways, or upside down, or backwards, but like what the fuck they couldn't fire forward. Major engineering flaw Seriously. Star Destroyers weren't as agile as Rebel Starfighter and were pretty much like whales out of water. Every Rebel assault plan involved going head on to a Star Destroyer. Well with a ship that can't unleash all its arsenal forward, attack it head on. So, when the Empire saw this flaw they usually have there TIES do a defensive screen at least making the X-wings have some sort of challenge. Well if a ship came up the side that's a different story  XD .