using class

[Carloggy]

I mean the modified code. I didn't understand the some of english terms.

[ichabod801]

My idea was to change Rocket to this:

class Rocket ():
    def __init__(self, name, height):
        self.name = name
        self.height = height

So now you have to specify the height each time you make a rocket. In your loop when you create the rocket, you just need to increase that amount by 10 each time through the loop.