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Old 15th Jun 2012, 19:14
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Intruder
 
Join Date: May 2000
Location: Seattle
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Unfortunately my ears are very sensitive to pressure - I can feel the difference between the top of Bondi Road and Bondi Beach (for those who don't know that's maybe a few hundred feet).
Bane of my life, so I'm curious why I feel a pressure change so high up.
Besides the cabin controller starting the pressurization change at Top of Descent, bringing the throttles to idle will often have a temporary effect while all the valves catch up with the change in airflow through the system.

Actual cabin pressure depends on the airplane and cruise altitude. It may be as high as 8,000' or as low as sea level (for a short, lower-altitude flight). The cabin controller tries to maintain a specific pressure differential (typically in the 8-10 PSI range) from the atmosphere at higher altitudes.

My ears are also sensitive to changes, but I often consider it an advantage. I occasionally catch an anomaly before others do...

Last edited by Intruder; 15th Jun 2012 at 19:17.
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