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Same A/c, Same Engines, Larger Cost Per Km - Why?  
User currently offlineSonic From Lithuania, joined Jan 2000, 1670 posts, RR: 1
Posted (5 years 7 months 3 days 10 hours ago) and read 4262 times:

Hello,

The SAS in-flight magazine (Scanorama) has details about aircraft of the airlines at least partly owned by SAS (such as Estonian Air, Air Baltic, etc.). Among the information provided there is operational costs. I noticed that cost per seat per kilometer for the same aircraft type and modification and same number of seats and with the same engines differs in different airlines quite much (by as much as 20% if I remeber correctly). Why is it so?

[Edited 2009-01-21 15:04:25]

5 replies: All unread, jump to last
 
User currently offlineNomadd22 From United States of America, joined Feb 2008, 1846 posts, RR: 0
Reply 1, posted (5 years 7 months 3 days 9 hours ago) and read 4241 times:

The length of the flight. How often they refuel, which would affect their average fuel load. How much cargo they carry. Mostly the length of the flight. A plane making 400 mile hops is going to use a lot more fuel per mile than one making 4,000 mile trips.


Andy Goetsch
User currently offlineGreasespot From Canada, joined Apr 2004, 3079 posts, RR: 20
Reply 2, posted (5 years 7 months 3 days 8 hours ago) and read 4218 times:

Plus they maybe the same family of engines but different dash numbers.....Like the previous company i worked for and the JT8D's

The b 737-200C could use the -9A, 15, and 17...Same family but not the same performance...

Sorry unknown if that carries on with the CFM56 series..

GS



Sometimes all you can do is look them in the eye and ask " how much did your mom drink when she was pregnant with you?"
User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 3, posted (5 years 7 months 3 days 7 hours ago) and read 4201 times:

Operating costs can very by 10% between the same aircraft type operated by the same airline. Operating cost differences of 3 to 5% quite normal . Things like flight controls rigging, leaking door seals, engine status and fuselage smoothness and gaps all effect the operating costs.

User currently offlineSunriseValley From Canada, joined Jul 2004, 4938 posts, RR: 5
Reply 4, posted (5 years 6 months 3 weeks 5 days 9 hours ago) and read 3908 times:



Quoting 474218 (Reply 3):
Things like flight controls rigging, leaking door seals, engine status and fuselage smoothness and gaps all effect the operating costs.

plus there are weight variances between one aircraft and another, of the same model and version.


User currently offlineRivervisual From United States of America, joined Jan 2009, 51 posts, RR: 0
Reply 5, posted (5 years 6 months 3 weeks 5 days 9 hours ago) and read 3901 times:

In addition, you need to consider if the cost per km includes staffing costs. Depending on the labor contracts the same aircraft/engines may have vastly different operating costs.

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