G'day

Yes, I have managed to "roll" my Kadet Seniors (which have no ailerons) but it does need a lot of down elevator at the top of the roll and the roll is less than pretty. Flying the Kadet inverted is also fun. All that dihedral wants to turn the plane back onto its feed and so you have to fight to keep it inverted.

The main trick with any of these maneuvers is height. Lots of it. You need at least twice the height of a loop as to recover from inverted flight, you really need to do half a loop in the direction of DOWN and if the ground is too close .......