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Old 22nd Jun 2009, 23:13
  #2151 (permalink)  
HarryMann
 
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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 Jun 2009 at 01:45.
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