Hello

Let me start by saying, What a great site! At the moment I have a MDS 40 mounted on my plane which has been very agravating. I spend more time tuning than flying. I have done a search on this subject and it looks like its been covered many times. My Avistar, BTW, has been repaired from a crash which was caused from my batteries. So it's a little heavier now. My ? is will the OS 40 Fp (which was given to me) have enough power to fly the plane from a grass field?