Wide open in the front and bottom I cannot see any cooling issues. I threw most of the plane on the scale engine, wing tail fus, battery but no servos or receiver it should come in under 20 oz at the most dry
Just noticed you said you are going to fill in under the engine If you do just open up a little more around the cylinder. Mine is going to be in the breeze the hatch will be behind the fire wall martin > If you will sheet the top
I would leave the bottom open martin


decided to go with the JR micro 35 servos for rudder and elevator 30z torque since have them and I have some sub micros I can use for throttle