Airbus economy

[Epsilon minus]

Pinched from another forum. Could this possibly be true?
A UK based schedule carrier does the following on their Airbus fleet, they make the a/c think (prgram it) that its in certain atmospheric conditions (incl altimeter settings etc) when its really not at all- these programmed settings allow for a more fuel efficient take off burn, this can only be done if runway lenghth allows it. They carry a lap top in the flight deck which calculates all this for 'm, so they can program the a/c with most efficient settings

[longarm]

Sounds like a confused understanding of a reduced power take off.

[FlapsOne]

Indeed. A standard flex take off calculation.

[FougaMagister]

... as it's also done for every other type of turbofan or turboprop airliner - not only Airbuses (even though I think it is only referred to as "flex" on Airbus and Fokkers - but I might be wrong).

The assumed temperature method allows for reduced thrust take-offs, therefore preserving the life of the aircraft's engines. The use of laptops, however, is company-specific (it is more commonly done by reference to performance tables).

Cheers :cool:

[Escape_Slide]

Yes it is just standard practice, mate. It's a bit like flying in cruise. You can do it on elevators or thrust to maintain air speed and if it is on RVSM you might decide thrust is the way to go.