During yesterday lunch break I tried again the multifun after having replaced the broken propeller with, this time, a folding propeller (a 9x5 from aeronaut). I also activated the break on the motor.
I flew 15 to 20 minutes in calm air. The Multifun is half way between a glider and an airplane which is interresting. It is very relaxing to fly, can do smooth aerobatics easily like the glider version, can fly very slowly.
More pictures here
I will continue the testing before to do a write up on it.
Stay tuned !