PPRuNe Forums - View Single Post - AF447 wreckage found
View Single Post
Old 7th Aug 2011, 03:43
  #2704 (permalink)  
takata
 
Join Date: Jun 2009
Location: Paris
Posts: 691
Likes: 0
Received 0 Likes on 0 Posts
Sidestick

Hi Bubbers44,
Originally Posted by Bubbers44
If the PNF had a yoke in front of him flailing all over the place mostly in his lap don't you think he would have responded and put it where it was required to be for the no airspeed situation? I know the yoke costs money and weight but isn't it a wonderful way to see what your fellow pilot is doing? Maybe Airbus should put yokes back in their aircraft.

What the lawyers lawsuits are going to cost them negates all the years of SS controls to reduce weight and cost.

This could happen again.
After the plastic vertical stabilizer snapping off, the crazy computer automatic dive, the flat spin caused by too far aft CG, the total loss of elevator control due to THS autotrimming, the complete loss of artificial horizons (meaning a quadruple failure of inertial systems), the supposed lack of alpha indicators (which exist but that no company really care to add on pannels) or control surface feedback, etc. theories... we are back, now to the so flawed sidesticks that can not allow any cross control check of imputs...

Actually, this feature exists on all Airbus aircraft, but it's not displayed after take-off. Then, one should ask Why it is like that?
In fact, because nobody using those aircraft seems to be very concerned about such an "obvious" need or it would have been made possible from two decades. Nonetheless, it could be very easy (and cheap) to add it, without changing anything to the actual stick system, via a stick pushbutton commanding to display this function (see below) during whatever phase of the flight.

Going on lawsuits against Airbus on such a case would be a non-winning game. Nothing is showing that it was a factor at all, neither that doing otherwise is better. It is obvious that the PNF complained about PF initial imputs almost immediately: he saw them and was able to take over at any point (including by blocking PF further actions) but he refrained from doing so.

Function displaying sidestick imputs:


Last edited by takata; 7th Aug 2011 at 16:33. Reason: quote
takata is offline