system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] How do ships in Star Wars like the Star Destroyer stay in the atmosphere of a planet without falling?
gpt
Repulsorlift engines. Much like smaller craft like speeder bikes, land speeders, and even starfighters, larger vessels--up to and including certain capital warships--are capable of operating in atmosphere, using the same technology that provides for smaller craft. Most starfighters operating in atmosphere do not rely on traditional aerodynamic principles to generate lift or manuver, instead relying on their repulsorlift engines. Of course, using such engines in atmosphere can consume great amounts of energy, making the process difficult. Furthermore, above a certain scale, it's impractical, so it's highly unlikely you'd ever see something like an *Executor* class SSD operating in atmosphere.