Archived from groups: alt.games.microsoft.flight-sim (
More info?)
On Fri, 9 Sep 2005 18:48:54 -0400, "Arthur" <simmeronlo@rogers.com>
brought the following to our attention:
>On my return trip last spring from Los Angeles to Toronto in an A321, I
>experienced a pain in my head during descent which I thought would kill me.
>Admittedly, I did have a small head cold at the time and also had taken a
>couple of Tylenol 3's for back pain. I have flown many, many times on
>assorted Boeings and Airbuses and this was the first time I have ever
>experienced such discomfort. The pain vanished the moment the wheels
>touched down and I was the only one in the cabin to throw myself at the
>captain's feet and thank him for his great landing. The security officers
>managed to complete this experience.
one time I congratulated the Capt or FO, whoever it was standing in
the lower Jetway, on a fine job even though we dropped like a crate
onto the runway with a chin-dipping ka-thud!!
-G
>Arthur
>
>"Oskar Wagner" <rengaw@swissonline.ch> wrote in message
>
>> In fact the cabin rate is not directly related to the A/C's ROC or ROD! (I
>> explained this in another thread recently) It is mainly dependend on the
>> design of the pressurization system. Different A/C manufacturers have
>> different technologies and philosophies. Airbus e.g. starts pressurizing
>> the cabin during T/O roll which literally means that the cabin will
>> experience a shallow descent to around 100 ft below THR altitude and then
>> start climbing at a constant rate whereas others will start pressurizing
>> the cabin upon lift-off. This usually leads to a noticeable "bump" in
>> cabin pressure. Another thing is variable engine power. During high power
>> output the pressurization system will be fed from intermediate compressor
>> stage bleed air. Whenever power is reduced the intermediate pressure may
>> drop below a certain predefined level and now the high pressure valve
>> opens to maintain system pressure. This can also lead to a noticeable
>> bump. It will mainly be observed during descent. It happens first time
>> when reducing PWR to start initial descent from high altitude and
>> consecutively when adding power to maintain altitude or to slow descent
>> the high pressure valve will open and close upond demand of the
>> pressurization system. Depending of the state of the whole system, the
>> valves and the pressurization controller it can be quite noticeable (and
>> sometimes admittently annoying...).
>> --
>> Oskar Wagner
>> (retired Captain)
>>
>> Remember, in the great scheme of things, we're all small potatoes....
>>
>> "Adam Webb" <adam@ajmysecondname.eclipse.co.uk> schrieb im Newsbeitrag
>>
>>>I been away for a week and i just wondering what name Amangill uses now,
>>>and what else has gone on etc
>>>
>>> catch up time! ;-)
>>>
>>> On a flight related note though, For the first time in a long while i
>>> flew on something different, a 767-300. We normaly go on 757-200/300s.
>>> One question though, is it normal for ears to be in TERRIBLE pain when
>>> climbing/decending in this plane? It was my worst flight since going on a
>>> A320 (the really small one) which seemed to dive like a Ju87 dive bomber
>>> into the Airport....
>>> --
>>> From Overlag - Adam Webb
>>>
>>
>
omdnV9kg5-6S7zeRVnytQ@eclipse.net.uk...
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