Nick:
You are, of course, correct - LTE cannot happen in some helicopters that have been designed to meet military requirements. Sorry for the slip up.
It is interesting to note that the design standards only call for sufficient tail rotor authority to handle winds of at least 17 knots from any quadrant, at maximum weight, and typically 7,000' density altitude. If the helicopter is not using maximum power in these conditions, then what is the pilot to do who wants to takeoff and climb vertically (and has enough power to do this)? He will probably run out of tail rotor authority, because there is no certification requirement for this!
But what do we do about the examples given for the 206L series that appears to run out of tail rotor well before the certification requirements? Was it overloaded for the density altitude? Should an incident report have been sent to the FAA about the lack of tail rotor authority?
Interesting discussion.