Not really, I flew without it a couple of times before I figured it out, after I put the engine back on and forgot to put it back on. The only thing I could see that was different was the missing wire tie, so I put another one on, and my suttle in flight glitching was gone. That plane im sad to say is no more though. One of the guys at the flying site turned on a tx on channel 33 while I was coming in for a landing, and shot me down. He bought me a new Stearman, so im not too upset. I gotta say, that was a very helpless feeling, watching the plane go crazy without my help. Im very glad that the guy that shot me down has a good job. lol