PPRuNe Forums - View Single Post - AF 447 Thread No. 8
View Single Post
Old 13th May 2012, 11:34
  #685 (permalink)  
rudderrudderrat
 
Join Date: Oct 2009
Location: UK
Posts: 1,270
Likes: 0
Received 0 Likes on 0 Posts
Hi HazelNuts39,
Interesting aspect of the AF A340 zoom climb is that alphamax is exceeded in normal law.
Presumably alpha is measured real time and the airspeed can reduce if delta g is reduced during the apogee. It will take some time for the attitude of the aircraft to change in response to the new alpha measured at 1g, when the speed was so far back.

Some "amazing" recommendations by BEA including:
"The BEA released another safety recommendation to EASA to require the autopilot disconnect aural alarm become continuous until cancelled by human action, reasoning that the A340 cavalry charge by design sounds 1.5 seconds and may therefore be suppressed by a higher priority aural alert. This suppression had contributed to a critical incident, the BEA continued."

Wtfiidn? springs to mind.
rudderrudderrat is offline