Creating thruster-like sound form engine sound

So at start I have to say that I’m complete newbie in audacity etc. I’m developing indie game for which i need sound loops for spaceships. Unfortunately I couldn’t find any loops that would fit to my game on any sites with free sound, so I decided to try do it myself. The effect I want to achieve is something similar sound of spaceships form 1st ep. of StarWars( I thought that I could create it by taking some existing engine sound and adding to it this wave effect(this probably has some professional name). Is it possible to do in audacity, if yes, how?