PPRuNe Forums - View Single Post - AF447
Thread: AF447
View Single Post
Old 22nd June 2009 | 23:13
  #2151 (permalink)  
HarryMann
15 Anniversary
 
Joined: Jan 2008
Posts: 760
Likes: 9
From: Herts, UK
Originally Posted by PJ2
Obviously if one thinks about it, there is a cabin climb schedule which matches the aircraft rate of climb so that "catching the cabin" does not occur. In climb this rarely if ever, happens but if one is descending very quickly, one can get to the altitude that the cabin is at and then the cabin will descend with the aircraft - very hard on the ears.
To add to that well drawn picture, there's a focus on cabin rate of descent because the human ear is more sensitive to increasing than decreasing pressure. Speeds down mines for instance being limited to about 20 ft/s (1200 ft/min) certainly for members of the public.
IIRC - a working maximum (increasing pressure) was about - 800 fpm

Last edited by HarryMann; 23rd June 2009 at 01:45.
HarryMann is offline