PPRuNe Forums - View Single Post - A320 Pressurization 'peaks' cause damage to body? (packless tkof)
Old 13th Jun 2013, 00:37
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Capn Bloggs
 
Join Date: Mar 2002
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Suddenly subjecting the pax to a -1000ft/min cabin bump whilst they are climbing is a bit harsh in my book. Don't think it'd do any long-term damage, though. In the 146 we used to switch each pack on separately to reduce the pressure "bump". My current machine switches the packs off, then back on, automatically, so I don't even notice!

I can testify that in non pressurised airplanes any cabin vertical speed up to -3000 ft/min induces no medical problems, provided that eustachian tube and sinuses are not blocked.
If they are blocked, a valsalva manoeuvre is needed about every 1000 feet (at low levels).
-3000ft/min in an airliner is totally and utterly unacceptable in my book. You would have serious problems with pax ears on a regular basis if they were subjected to that. If you think that's quite OK, you're either not a aviator or a pax.

I throw a wobbly at the FO if we catch the cabin on final at 700ft/min!
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