PPRuNe Forums - View Single Post - AF447 final crew conversation - Thread No. 2
Old 11th Mar 2012, 15:43
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Lyman
 
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The first clue of a possible impairment happened in autoflight. The V/select reported as 5000 fpm descent. If accurate (the a/c did not remain in this config, only commanded, rejected), the a/c was countering a 50 knot climb, or compensating for a chronic misalignment of THS and/or elevators.

As to RUDDER, I believe the pin is actuated within the fuselage; any "position" would be Pin Only, not necessarily to include the Rudder itself. So RTLU reports the drive portion position. Of course, the Rudder is assumed to be attached thereto.

HazelNuts39. At static deflection, yes. In cycling, the loads (calculated) can be much greater? The airplane's stresses are "independent" of a transiting aileron, yes? Are you assuming Still Air? In turbulence (again, calculated) the stress can multiply, of course.

And that is assuming a full complement of control surfaces at less than max deflection. At cruise, fewer surfaces are utilized, and at less deflection (small inputs). If all surfaces are not available, the ones remaining to accomplish the maneuver must be at max. (Spoilers locked out, eg).

Last edited by Lyman; 11th Mar 2012 at 15:58.
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