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Forum: Tech Log

5th Aug 2006, 12:56

Replies: 27

Catching the Cabin on the 737

Views: 6,428

Posted By BOAC

Telstar - most of the discussion above relates to...

Telstar - most of the discussion above relates to CPCS (as fitted to the 727-200/200/400/500) You, in a NG have DCPCS, and I believe otherwise the same system as a -400.

Cause is: A rate of...

Forum: Tech Log

4th Aug 2006, 11:28

Replies: 27

Catching the Cabin on the 737

Views: 6,428

Posted By BOAC

Unfortunately, Paolo, the 'bump' has nothing to...

Unfortunately, Paolo, the 'bump' has nothing to do with selected rate, but occurs from the 'kick' changing to 'Standby' applies to the outflow valve - at least that is my experience.. Try it with...

Forum: Tech Log

2nd Jul 2006, 21:29

Replies: 27

Catching the Cabin on the 737

Views: 6,428

Posted By BOAC

It means that cabin diff exceeds the 'limit' due...

It means that cabin diff exceeds the 'limit' due to insufficient time to lower the cabin altitude from cruise and the cabin rate goes towards aircraft rate.

Forum: Tech Log

2nd Jul 2006, 07:41

Replies: 27

Catching the Cabin on the 737

Views: 6,428

Posted By BOAC

The 'auto' system descends, IIRC, at about...

The 'auto' system descends, IIRC, at about 500fpm. Therefore if you are at FL400, say, (cabin at about 8000ft), you need about 16 mins to get the cabin 'down'. Make that descent in 15 minutes and you...

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