Om2
Topic Author
Posts: 4
Joined: Sun Feb 09, 2020 6:01 am

How much fuel does an A321 Neo burn per hour?

Sun Feb 09, 2020 9:56 am

Does anyone know how much fuel the A321 neo burns per hour?
 
IgorD
Posts: 24
Joined: Thu Dec 06, 2012 12:28 am

Re: How much fuel does an A321 Neo burn per hour?

Sun Feb 09, 2020 9:36 pm

Appoximately 1/33 of its weight per hour in ISA conditions, LRC at a (near) optimum altitude. For a weight of 80 ton it will burn aprox 2,45 ton per hour.
 
hotelmode
Posts: 197
Joined: Tue Jan 23, 2007 6:31 am

Re: How much fuel does an A321 Neo burn per hour?

Sun Feb 09, 2020 9:46 pm

Its a lot less than that. Around 2t/Hr on sub 2hr sectors, bit more when fully fuelled.

About the same as an A319 CEO
Last edited by hotelmode on Sun Feb 09, 2020 9:51 pm, edited 1 time in total.
 
IgorD
Posts: 24
Joined: Thu Dec 06, 2012 12:28 am

Re: How much fuel does an A321 Neo burn per hour?

Sun Feb 09, 2020 9:51 pm

hotelmode wrote:
Its a lot less than that. Around 2t/Hr, normally a bit less.

Could you tell for what weight this number is? I can imagine 2t/h for a 70 t gross weight and a lower M number.
 
hotelmode
Posts: 197
Joined: Tue Jan 23, 2007 6:31 am

Re: How much fuel does an A321 Neo burn per hour?

Sun Feb 09, 2020 10:45 pm

IgorD wrote:
hotelmode wrote:
Its a lot less than that. Around 2t/Hr, normally a bit less.

Could you tell for what weight this number is? I can imagine 2t/h for a 70 t gross weight and a lower M number.


Its from the QRH cruise quick check tables which are based on 65t. The burn is 1909kg/hr at FL370 at M0.78 (which is pretty fast). Correction is 10kg/hr/t so even at (our) 89T MTOW it is only 2140/hr.

These tables are normally pretty pessimistic too.
 
IgorD
Posts: 24
Joined: Thu Dec 06, 2012 12:28 am

Re: How much fuel does an A321 Neo burn per hour?

Fri Feb 14, 2020 10:32 pm

That seems a bit underestimated. At 89 t it should burn about 2680 kg per hour at an optimum altitude.

I think the correction of 10kg per hour for each extra ton is valid for the same FL. However if you're heavy, you'll have to be lower, i.e. you add parasitic drag to the induced drag. FL370 is not an optimum for 89 t A321N. Probably it will not even be possible to be there at that weight.

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