The ships you see here are the some of the biggest ships of the galaxy. Both the Imperial and the Rebel ships have immense firepower from turbolasers etc. The ships on the left are Imperial the ships on the right are ships from the Alliance
This is Darth Vader's personal Super Star Destroyer wich is almost five times bigger then the Imperial Star Destroyer. It carries two entire wings of Tie's (144 ships). It is manly used to frighten star systems, and it works. This is a good example ogf the Empires might and recources
These ships form the core of the Imperial Navy, carry one wing of 74 Ties aboard and have a significant firepower wich they use to attack enemy capital ship but also enemy ground positons. They also have landing craft, numerous At-At Walkers and At-St  Walkers and enough Stormtroopers aboard to overrun enemy installations.
The Empire began constructing the second Death Star three years after the battle of Yavin. They used a new type of superlaser that could recharge much faster and was so accurate that it even could fire at capital ships. With its 160 km diameter it was much bigger then the original Death Star. THis Death Star played a key role in the Emperors plans of destroying the Rebel Alliance.
This is the first Death Star, with its 120 km diameter it was the biggest star ship ever build. Design by Grand Moff Tarkin it was a weapon of mass destruction that would bring terror to the galaxy and so give the Empire control of every system wich would want to get destroyed. The Rebels knew that they had to destroy it or else it would mean the end of the rebellion.
the Bloccade runner is a small, fast en endurable stardhip that can be used for several tasks, such as: patrol, hit and run, spionage etc. It thanks his name to the fact that it can easily outrun the most Imperial threats. It is normaly fitted with six turbo lasers, and the escape pods that brought R2-D2 an C-3PO to Luke Skywalker.
These ships form the core of the Rebel fleet. Due to its organic structure it is difficult to repair but that doesn't need to happen a lot because of its thick armoured plating. The Mon Calamari cruisers are not to be underestemated by the Empire because they can bring substancial firepower on the battlefield.
thsi is the Rebel Cruiser, meanly used as medical frigate it can also be used for escort duties and hit and run missions becuase it has a competent hyperdrive and enough fire power to take on a wing of starfighters.
The Gallofree Transport seen here is also know as the Rebel Transport. It is used for transporting troops, weapons, ammo and medical supplies. Some models are rebuild to serve as fuel tankers so ships like the Rebel Cruiser (seen above) who are on deep space patrols can cover greater distances. Because it is only armed with a single laser turret it must always have a escort, mostly star fighters.
Episode 4-6
Capital Ships
Executor
Imperial Star Destroyer
Death Star II
Death Star
Bloccade Runner
Mon Calamari Cruiser
Rebel Cruiser
Rebel Transport
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