Oh wow, I just figured it out based off of what you said.

I guess I was closer than I thought.

I just made a variable for the helicopter called "moveable" and set it = to 1.
And after it "starts up" it get's set to 2.
And I have an IF/ELSE statement in all the move events saying it has to be set to 2.

SO thanks for the inspiration.
If there's an easier way, or maybe this isn't what you meant, feel free to reply with what you were going to say...