Just for info, and not wishing to be insensitive; could a helicopter pilot explain how a main rotor blade in flight could pitch low enough or deflect low enough to chop the tail boom. Are there not physical stops to prevent it ?
And secondly, what does the helicopter pilot have to do, and what options are there to control the 'craft after loss of a tail rotor or tail rotor thrust ?
This is not intended to criticise anybody at all; it's merely for my technical understanding, (for this fixed wing pilot).