JF - Thanks for the reply. I remember it being a tragic story, but the details were sketchy as it's been a while since I heard the story on groundschool.
Audax - I think I'm correct in saying that the canopy isn't cleared for fracturing in flight for the reason that the pilot will end up with shards of perspex in his chest. Not nice, although I can't think of many times I'd want to frag the canopy in flight.
Lots of happy memories of the Tucano, except for that damn slip ball........................