ty guys... got my tank moving again.. ordered some parts from bill.. got the new RX-18.. the sound is kinda weird.. idle sound is better than the 1st rx-18.. but the new acceleration sound is kinda off the scale.. not too realistic.. hehehehe even your tan is moving slowly the sound stays the same.. samething with ur tan is n full speed.. hehehe.. but the cannon and machine gun is much better than the old one.. but the jerking recoil is a lil bit worst.. hehehehehe.. also got the smallest fan.. and installed to my new rx 18 board.. that should keep it from heating up.. hope the smallest fan with do..

daryl