RE: QQ 85" Yak
Here are a few more pics showing the electronics and fuel tank. I fabricated a lite ply plate to fasten the tank with velcro... notched the bulkhead and then located the tank squarely over CG.. notice the center of the tank is its slightly aft of the wing tube...also the ply plate greatly strengthens the bulkhead, so no matter how much I had to clearance the tank it didn't matter! CG on this plane is just behind the wing tube..!
I located all my switches and charge jacks inside... and have small pins to turn the switches on and off with the hatch locked in place. (similar to how QQ did it..) Mounting the switches like this completely eliminates the need to hack up the thick foam sides to mount the on/off switches and it made for a very clean install.. all of my power wiring is in the engine box, and all the RX wiring is at the fuel tank.
DP