Any "Latest & Greatest" about Delta?
I'm totally with you on this N-W-A. Does anyone remember the rap group NWA or is it just me?
The rampers are pretty good at getting the air connected in the summer in my experience in ATL. That was part of 80s complaint in that the air was hooked up and running and the APU was left running and the crew left it running. I kill the APU once the air is hooked up but not before.
Now, I don't know a thing about the N1 limits on a A320, but I've done 76ER outbound for Europe, 757s and MD88 SE taxis in the summer. Most of the time we wait until #3 to start the other engine in the MD88. If that thing can do it the A320 should be able to do it... except of course, if there is another limit on it.
I also kick hoses to straight them out enough that the airflow is not kinked and that helps a ton.
With that said, I'm anti-SE taxi with no APU and anti-no APU on a SE taxi. I'm anti shutting down an APU, if no air was installed, until the plane is mostly empty no matter the weather temp outside. Also, if it takes 2 engines and an APU to keep a plane hospitable on taxi out, use it.
As to APU's being left running with no crews, I'm still not buying into it despite feeling like I'm the minority on this on this board who thinks an airplane with a running APU should never be unattended.
I mean yeah for auto systems that shut down APUs while nobody is on board but are bottles auto blown? So that APU fire, does it keep burning after the shutdown? And even if there is an airplane out there that auto blows bottles- are fire trucks auto called? Is maintenance auto notified?
The rampers are pretty good at getting the air connected in the summer in my experience in ATL. That was part of 80s complaint in that the air was hooked up and running and the APU was left running and the crew left it running. I kill the APU once the air is hooked up but not before.
Now, I don't know a thing about the N1 limits on a A320, but I've done 76ER outbound for Europe, 757s and MD88 SE taxis in the summer. Most of the time we wait until #3 to start the other engine in the MD88. If that thing can do it the A320 should be able to do it... except of course, if there is another limit on it.
I also kick hoses to straight them out enough that the airflow is not kinked and that helps a ton.
With that said, I'm anti-SE taxi with no APU and anti-no APU on a SE taxi. I'm anti shutting down an APU, if no air was installed, until the plane is mostly empty no matter the weather temp outside. Also, if it takes 2 engines and an APU to keep a plane hospitable on taxi out, use it.
As to APU's being left running with no crews, I'm still not buying into it despite feeling like I'm the minority on this on this board who thinks an airplane with a running APU should never be unattended.
I mean yeah for auto systems that shut down APUs while nobody is on board but are bottles auto blown? So that APU fire, does it keep burning after the shutdown? And even if there is an airplane out there that auto blows bottles- are fire trucks auto called? Is maintenance auto notified?
In crosschecking myself to keep from looking like an idiot- no N1 SE taxi limits exist on the 320 now.
40% is a suggested maximum in the FCTM, but it is not required... which seems quite low considering we have the same engines on the 73N and normally SE taxi all the way up to 170,000 lbs. That normally requires about 50% or even a bit more when heavy and if you're sunk into a spot on the tires. It works great and lasts long time.
There is a set of conditions listed in the FCTM that suggests (note "suggests"- not requires) not single engine taxiing on soft asphalt or wet, but again- we have the same engines on the 73N with no such restrictions.
I think these may be holdovers from fNW that will go away in time, much like the fDL oddities and impracticalities will go away in time. (thank goodness it's no longer called 'Before Start' checklist... always made me twitch)
As far as APU usage... ftb hit the nail on the head. The CFM-56 doesn't put out enough air to properly cool the cabin on one engine unlike the 757 and larger which have no problem doing no-APU taxi and crossbleed starts on every taxi-out while keeping the cabin cool.
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Joined APC: Oct 2006
Position: B757/767
Posts: 13,088
Dare I wiki who John Holmes is? Context clues says I can make a good guess.... I'm not going to do a photo search, that I know for sure.
(Think Dirk Diggler in "Boogie Nights" or is that too old for ya too)
PS I was going to help ftb out, I copied an image from google image, but then I couldn't paste it. What am I doing wrong?
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