Platinum sick, unable to return on APRS Technics've tried (in trying to adopt it !!!).
Everything is perfect, including the controls pitch and "revolutions / minute" that can dplacer depending on configuration.
Only BMOL, the torque decreases violently during a long power from scratch, this is not an isolated case 3 of my friends have and the problem is rcurrent (I do not know how they did the last "DMC "!!!).