Freebird1 :

The video does not prove the spe 26 can pull the edge out of a hover, since the plane in the video was flown by Jose Ribeiro and he said the engine used was "a rear carburetor engine"
not the spe 26, but a 26 cc from another company.

In the engine forum, in a post about the spe 26, Jose Ribeiro himself states the spe 26 is "too weak" for 3d.

So i'm keeping my doubts about the spe 26 cc capacity for 3d as well.