the covering is the chrome stuff. I have flown that plane for a long time before i decided to buff it atthe field. I flew it and had aileron problems. did range check and saw it only got 20-25 feet. swap RX at the field and had same problem. Put the first RX in the swaped plane and range checked just fine. I forgot to say eariler these RX's are the AR 6100. on the coevering I used the brillo pad to scuff off the clear part of the covering down to the aluminum layer. this makes the chrome look like old aluminum on an plane.