Hey guys.. Out of curiosity: What is the distance from the front of the cowl to the back of the spinner plate supposed to be? I am asking cause it seems like you all are having to add nose wieght if I read correctly.. If that's the case then why not slide the engine forward? This will do 2 things..
1. Balance your plane with an overall lighter wieght..
2. Boost your propeller efficiency..

I fly the Extreme Flight Yak-54 which is a radial design and the full scale prop is way forward of the cowl for prop efficiency.. We put out motors 3/4-1" out on the models for this reason.. Just my $.02.. Let me know your opinions.. Thanx