Tarkin
this Imperial weapons project was developed in the Patriim System, in the wake of the destruction of the first Death Star during the Battle of Yavin. It combined the Death Star's offensive weaponry and ionic cannons with a new set of engines and defensive shield generators, reducing the number of support personnel needed operate the weapon. The designers also upgraded the ship's exhaust systems, eliminating the weakness of the Death Star. The Tarkin's main fuselage was based on the design of the Super-class Star Destroyer, but on a scale comparable to that of the Death Star. A team of Alliance agents, including Luke Skywalker and Leia Organa, managed to infiltrate the superweapon and destroy a main power generator, as well as reversing the polarization of its fire control mechanism. When Colonel Nord tried to fire the ionic cannon on the fleeing Alliance agents, the Tarkin fired inward on itself and exploded, killing all aboard and tearing itself apart.