Lost a great plane today[sm=cry_smile.gif]....the Rossi made it but the Jettstream pipe did not[] I wish I could give glowing reports of the engine combo but thanks to a stinkin AR500 receiver my most faithful plane and a $70.00 muffler are up in smoke. DO NOT buy the 5 channel Spektrum AR500 this is the second one that I have had problems with. Lost all radio control on final and spun in at about fifty feet onto a road. NO the battery didn't poop out and all of the connections were still together as I always tape my connections. I have had no problems with the AR6200 6 channel or the 7 channel Spektrum receivers but with this being the second 5 channel with problems I am slightly ticked off and Spektrum is going to hear about it on Monday. Love my DX7...love 2.4 hate loosing planes to stuff that wasn't my fault.