Originally Posted by
DaveReidUK
Nice explanation, although I suspect you mean simply inertia, rather than moment of inertia, particularly in your ballistic analogy.
Well, it depends on your frame of reference. Since the blade is attached to the hub and the hub is spinning at a high rate, I used the term moment of inertia. Further, in my bullet analogy, a bullet is spinning at a very high rate which stabilizes it. Nevertheless, once the blade fails and detaches from the hub, the blade is behaving under plain inertia, and with no spin to stabilize it. So in that sense, you are correct and I concede your point.