RE: Full scale torque roll?
There is a french guy called Xavier De Laparent who flies a Sukhoi 26 in breitling academy colours, I've seen him do about 5 or 6 torque rolls whilst holding altitude.
I think the only reason he stopped was because it was getting boring for spectators, oh and his engine was probably close to expiring!!! lol.
Apparently, during his 3D display, and i do mean all 3D, he runs the engine absolutely flat out and it can't cope with it. It needs a rebuild every 3 or 4 shows, so I've been told anyway.
If anyone can find any videos, post them here, the only footage I have of him is on VHS.
He does, harriers, inverted harriers, rolling harriers, torque rolls, prophanging, flat spins. He actually does a sort of harrier landing, but he pushes out of it at about 50 feet to land, still impressive to watch though.