Old Bird,

Thanks for the reply about the motor box & 4 stroke installation. I am going to cut 1" off of the motor box and reinstall the firewall like you said. I have a OS 70 4 stroke I plan to us with a MAS 12x8 prop. I will use a 2600mah 6v battery and install it on the motor box. I also have change the landing gear. I had a Hanger 9 P-51 gear off of thier P-51 trainer. The gear is 7/32 steel and angled forward more than the stock gear. I hope this will put some extra weight forward to help with the CG.