Finally today, although with the wind, I could test the new Quantum Jet Tafthobby. At this link the video of the flight
http://youtu.be/pdsLeO5aUlo
The model fly well but, despite not have flaps, you must use two flight conditions, one for the flight and one for landing. This is because the model with gear down have different behaviors compared to fly with gear up with a slight tendency to pull right to be compensated with the rudder. A little reistance and tendency to find itself the horizontal position: these is cause for the biplane conformation with the wing pylons that provide surface to wind in turn. I fixing the batteries 5000Mah 35C 3 cm from the end of the base wood getting a decent centering for the first flight.
I hope soon, If the weather permits, to make a better video ...