Thanks TTB. Had to be one heck of an impact on the tail to do that. I thought the order of failure was stinger bend, fenestron, tail boom.
I was less than 100m (in a 120) from a 120 who flared late on practice auto, tail hit the ground but got away with a bent stinger. That impact looked "large" to me, though he did have 65kts fwd speed and it was onto grass.
Gotta cause severe hurt in the wallet area, that one!