Well, I was somewhat surprised by the amount of prevalence where rocket based heroes appear in comics so this is that trope. These heroes are a sub-genre of superheroes and are typically Badass Normals. Examples include Iron Man, the Rocketeer (both the film and comic book version), an old Ajax-Farrel character called Rocketman, and another old comics character from Chesler Comics also called Rocketman. Incrediboy from The Incredibles also counts.
Hello, Unknown Troper. You'll need to get known to lend a hand here.