CG Considerations
 

I'm looking for advise. I have a scratch built 1/9 F16 very similar dimensions to the Byron/BVM/Yellow Kits. I have the reccomended CG from the plans, but I had to put the majority of my fuel load behind the CG. Should I adjust the CG to account for the nosee heavy landing. I have 16oz behind the CG and a 6oz tank in front of the CG. If I set it per the plans, I will be taking off in a tail heavy condition and landing in a nose heavy condition, just the opposite of a conventional setup. With the construction of the plane, there was not any other option for placing fuel. BTW the plans show a 1 small tank well ahead of the CG. My OS .91 will burn off that amount on takeoff and a couple of laps. The plane is built from Italian plans from Casammali. It was designed to use a 5" pusher fan with a 2 cylinder inline engine. I converted it to a Dynamax/OS .91.

Thanks for any advise,

Mark Levings

CG Considerations
 

Good looking jet. The saying goes: Nose heavy jets fly poorly while tail heavy jets fly once. Ballast the model to the correct CG with the aft tanks full. Drain the tanks and see how far the CG shifts farward. I'd taxi it with the aft tanks empty and see if you can get the nose to rotate then abort. If the nose wheel will come up- it'll fly. You might consider a tank in the front and back feeding through a tee to the header.

Mike