Instructions
Travel out of the rocket factory once you have spoken with Jason Bright and received your repair instructions from his assistant.
Travel east towards Novac, then go into the Dinky the Dino Gift Shop and speak with the owner. He will then give you several model rockets, which contain a radioactive fuel required to repair the ghouls' rockets.
Head south of Novac until you reach a junkyard. Speak with the woman sitting outside the junkyard, and she will offer to sell you a set of rocket controls for 500 caps. Purchase these controls, then head back to Jason Bright.
Speak with Jason's assistant, who will use the parts to repair the rockets.
Travel to the top of the rocket launch facility (go straight up the stairs after speaking with Jason's assistant) and press "E" at the controls to launch the rockets now that they are repaired.