a buddy of mine has the same plane (red one too) and has an os 46 la mounted. plane has just about enough power. we were looking the dimensions of the plane and the weight and size seems to be more appropriate for a 46 size. just as one of the stickers on the plane has the number 46 on it.

i did have a world models sukhoi-31 and that plane was significantly smaller and lighter than the world models extra 30.

i do have a couple of 32sx's in hand if i were to asked if would put an engine of that size on this plane. answer would definitely not. thats just my own personal opinion. if you could at least put in at a least a thunder tiger 46 bb or a OS 46fx i think that would be great.