Since we are in the 3D Electric Flying Forum, I would like to share my experience with my Fliton Jumping Jack.

In general I believe that aft CG makes hovering and harrier easier and this was the case with JJ, since I placed 5 gr fo weight at the tail and moved my LiPo pack a bit backwards, the plane has been transformed into a hovering animal. Before that hovering was more difficult, the plane was dropping the nose a lot requiring too much elevator input.

It matters also for the electric planes where you place your LiPo pack with respect to the fuselage central horizontal axis, it helps the pack to be above the main wing spar in most cases, I think that modification also helped a lot with my JJ.

I believe that to properly harrier (upright and inverted) a plane is more difficult than hover it. Hovering in my opinion is not 3D. Harrier on the other hand is 3D due to its high α nature where hovering is NO α.

Here are some photos of my Fliton JJ, one of the best planes I've ever flown. [8D]

Rgrds,

Nick