Where was their abort’s call!?
The ailerons are none the less very effective tail low on a DC-3 for directional control.
Your downward aileron pretty much act like a spoiler in those conditions and is amazingly good at helping you recover from a swerve going the opposite direction. Timming while doing it is everything.
A common rookie mistake when starting an uncommanded swerve is trying to correct it like you would do in a car and its steering wheel (don’t laugh, I’ve seen it) That would just exacerbate your controlling issue.
I was wondering if that was not part of their initial problem. Driving their swerves instead of flying them. Then I realise that the CAF would never put rookies at the control of one of their aircraft, so that simply cannot be.
Keeping its tail low for whatever reason like elevator jammed or partially jammed was definitely one though.