Su35. It is 50 hours for the service interval on the rx motors. I've seen it on multiple websites. Check dreamworks or motors and rotors. The only thing recommended to be replaced at 25 hours is the fuel pump. That comes straight from the rx manual.
http://www.motorsandrotors.co/index....roducts_id=785
http://www.dreamworksrc.com/catalog/Jetcat-P-180Rx
Sorry about this Dave. John will get you squared away. I liked the video of your F-16.