Originally Posted by
skadi
In this (#18) and other videos you can clearly see the abrupt change of tailrotor RPM prior to the right yawing. So the loss of tailrotor is the main cause!
skadi
Clearly?!
I take the videos into account, but as it seems to be mobile videos, lots can be different than what it seems less than 24 hours after the event. I think it is too early to conclude like you do here.
Now, when the first sign of nose going right, one would expect with that low speed and height almost in a OGE hover, lowering the lever on instinct would stop the right movement or at least limit it, and from that height the rotors have quite a bit of inertia for a hoverauto to a rolling landing. Pulling an armpit full of collective from almost no forward speed if you suspect your tail has failed is irrational when the parking lot is dead ahead and open…
Obviously everyone can do irrational inputs, and lots of different things can be the cause, so to conclude what is the cause this short time after the accident based on some iPhone videos is premature.