Wow guys thanks for all the responses. I'll start off with saying no I did not get a transmitter(controller) . I know when I picked it up I flipped the switch on the side and the servos would move ever so slightly so I think the battery still had enough umph to at least the the system on. I pulled the spark plug out of the top and good lord I've never seen one that dirty. But then again I don't know what there supposed to look like after a few flights but to me if it was in a car it would be trash. There's what looks to be like the adjuster valve for the engine is pulled out. I have it but it's not in the engine also when I manually try to open and close the throttle it's stuck(my guess is built up gunk in the engine. I'm not heart set on replacing everything I was just unsure. I don't want to be mid flight and loose it come to find out a servo went bad or engine seized. Yes the plane seems to be very well constructed. I've been around them enough to see some really good builds and some that you wonder how it even takes off(I just don't know anything about the workings of them)