Packs OFF for take off?
Joined: Jul 2007
Posts: 812
Likes: 19
From: uk
Never flown the A320, we had a procedure in the 757 to use APU bleed for the packs on the rare occasions we needed more power out of limiting airports
If there’s no option to supply air for the packs from the APU I understand why they are turned off when necessary for increased power on take off
What I don’t understand is leaving the APU and it’s bleed on with the packs off. What benefit is that ?
If there’s no option to supply air for the packs from the APU I understand why they are turned off when necessary for increased power on take off
What I don’t understand is leaving the APU and it’s bleed on with the packs off. What benefit is that ?
Joined: Feb 2009
Posts: 945
Likes: 445
From: Austria
Indeed, and some also like to wash their hands after a visit to the vacuum room.
But after leaving the parking stands, there is really no point in running the APU if You need neither its electricity nor its bleed air. Even if You suffer from excessive weight and want to get rid of fuel to get below MLW, there are better methods.
But after leaving the parking stands, there is really no point in running the APU if You need neither its electricity nor its bleed air. Even if You suffer from excessive weight and want to get rid of fuel to get below MLW, there are better methods.
