On both planes, in front of the elevons. The motor is inline with the elevons. You can kind of see the largest bulge under the rudder where the edf sits. I probably could have places it a few more inches forward. But we will see how she flys like this...
Also, I finished the thrust tubes and painted it silver. And I painted the inside with very poorly mixed yellow and red paint to look like fire as the plane rips by... and so I hope anyways.
Nope not at all. I used a C of G calculation from the web for Delta wing. My 3s 2200 sits right in the nose with almost 2" of movement to play towards the tail if need be. Now if I had put the edf 2" forward, I may have no where to go with battery positioning. It's just how it worked out. I have 3" moveable room at the moment. I'll snap a pic in a bit to show you.
