Theoretical Scenario

MD-11 with onboard fire

#2 Tail-Engine is shut-down (due to fire&smoke of unknown origin checklist) so tail-tank fuel is not being used.

LSAS is out (longitudinal stability augmentation system which makes it easier to fly around at aft CofG and abide by 40% less than DC-10 horizontal stabilizer area) - autopilot also out.

Fire/smoke breaks through ceiling lining just aft of cockpit bulkhead (propagated by metallized mylar thermal acoustic blanket batts/wire arcing causing burn-through of stainless-steel HP oxygen lines to jump-seat - resulting in oxy blowtorch) and panic stricken pax up front rush rapidly back to the rear.

1. What will pilot notice happening due to this "back-rush"?

2. What will be the development of the resultant aft C of G Loss of Control?

3. What might assist control by way of:
a. configuration change?
b. manoeuvre?

4. Describe the resultant flight-path.

Belgique,

I had been awaiting some responses to your question but, I guess, the specific direction to the MD11 may have caused reticence due to a lack of Type systems knowledge.

As the question, although somewhat extreme in nature, poses a number of interesting considerations, do you think that it might be worth the effort either to provide some basic briefing on the systems peculiar to the Type, or else to recast the question into a more generalised scenario ?