>and it's more trouble that it's worth to try and re-use the same thrust units for hover and for forward flight (the design points are completely different). D

>and it's more trouble that it's worth to try and re-use the same thrust units for hover and for forward flight (the design points are completely different). Do you know why the Osprey designers went for tilt-rotor? Would it be easier or harder to do something like that at drone delivery scale with electric motors?