I notice that a lot of UAVs out there have generous amounts of dihedral, to the point that they look like the old fashioned "free flight" models of yesteryear.
But UAVs are not free flight models, nor are they full sized aircraft or models of same. UA
Say you wanted to build a glider to do the usual glider things. How big would you make it?
Given that fuel load is not an issue, and the mass of the APM is insignificant, would you make the wingspan 1.5 meters or 3.5 meters? Or bigger than full size?
Most of us are familiar with the "American style" artificial horizon - the sort where the little aeroplane picture stays still and the horizon moves around. But who's seen the "Russian style" AH, which has a stationary horizon and moveable aircraft?