A question for all gurus out there:
H-V charts in the FLM are for Single Engine Failure, so OEI flight regime, right?
Certain emergency procedures, like T/R failure bring us to a point where we need to (in some situations) roll both twist grips off and perform autorotation.
OK, we got that covered in the FLM also (autorotation). But, OGE hover T/R failure or IGE for that matter: how do we know at what height can we roll off the throttle, gain speed and land.
Do these maneuvers have to be proven for certification? If so, why there is no normal (all engine fail) H-V chart?