RE: CMPro Sukhoi SU-31
RevGQ
I was wondering how you worked the fuel tank? The tank fits in to the forward bulkhead rather firmly and the tubes stick through the firewall. The neck is not tight against the firewall but it does touch a little. Did this installation work ok for you or does it need to be modified.
I also am moving the engine to 160mm vs the 150 mm specified to help with the CG location.