APU fuel burn with apu bleed ON and both packs OFF

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APU fuel burn with apu bleed ON and both packs OFF

Postby Electron » 07 Jul 2019, 21:14

Hi all

I’m trying to find the reference that says that whilst on the ground, leaving apu bleed on with packs off causes 40% unnecessary fuel burn. Can anyone remember where it is?

I could’ve sworn it was in a service letter
Electron
 
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Joined: 21 Mar 2015, 14:17

Re: APU fuel burn with apu bleed ON and both packs OFF

Postby motortek » 08 Jul 2019, 16:15

737-SL-49-060
motortek
 
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Joined: 16 Dec 2011, 02:05

Re: APU fuel burn with apu bleed ON and both packs OFF

Postby Electron » 09 Jul 2019, 16:16

Not quite brother. I appreciate the attempt to help though

There is or WAS written SOMEWHERE, that there is specifically 40% loss of efficiency with packs off and apu bleed on, on gnd without eng’s running.

With my boeingfleet changes, i don’t know how to search for historical inactive stuff :(
Electron
 
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Joined: 21 Mar 2015, 14:17


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