Originally Posted by
PedroPat
Thanks for the info. Your procedure looks like it's straight from Airbus. The only problem is that it runs the N1 of the operating engine to 24% vs 19% and ups the fuel flow by 200 PPH at idle.
I'm trying to develop some data and see if my company is interested in changing procedure. Again, thanks for your input.
Cheers
At Frontier it's APU bleed on, crossbleed to Auto. Running both packs on one engine with the APU at idle burns more gas than running both packs on the APU. If you want real fuel savings, do APU off, and crossbleed AUTO until you do the crossbleed engine start. One pack will keep up with the AC requirements just fine under any circumstances I've seen.