A320 APU average hour fuel burn
Hi I cant seem to find in my Fcoms what the average hourly fuel burn for the A320 APU. Someone help me out here. and with references please.:\
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It may not be as precise as you need (then engineer is required) but as a rough approximation I use MEL numbers.
Search for ENG GEN INOP or similare where APU needs to be running, due to extra burn caused, some figures should be available there. FD (the un-real) |
Thank FD!
I found it in the operational part of the MEL: APU FUEL consumption with APU GEN ON (KG/H) GRD 130 FL200 65 FL300 51 :8 |
FCOM 2
Flight Planning |
S_C
thanks!! Quoted FCOM 2.05.10 P2 APU FUEL During ground operations, APU fuel consumption is about 130KG/H (Packs ON, 90 kVA on APU GEN) :ok: |
Off the topic a little...
Does anyone know what a "Start Cycle" for the APU would cost in terms or maintenance, wear/tear, etc? Just curious |
We were told about US$20, based on $180,000ish for an overhaul, which is largely cycle driven.
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Am I understanding correctly.... 9000 cycles between overhauls?
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Caution is required when quoting APU maintenance costs. Maintenance costs are very dependent on the particular lease/purchase agreement for the APU.
Many APU maintenance cost structures are not cycle dependent, only hour dependent. Further, the hour costing formula is usually a percentage function of airframe hours. This is because many airframes have poor or non-existent APU use tracking systems. If you are trying to calculate actual APU operating costs, you need a great deal of detailed airline/aircraft specific information to be accurate. The costs for one airline operating the same APU can be dramatically different than the same APU operated at another airline. |
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