I made it.
The cardboard FT Scout flew. not as expected, but well enough
Scout takeoff nice but with some thing weird.. i gess the battery-ESC-motor combo was too heavy. but CG was in the right place. was fun to fly but very very unstable... i don't know why. i landed it because reciver was hanging out of the fuse.
In the second try, a friend was flying his t-28 at same time and the plane came over us (my wife and me) so for a few seconds I lost sight of the plane, and it was too late to save it. i crached it on the grass