Does anyone here have experience of using a variable cost index (CI) for the purposes of optimising their operation?
If so, how are you, as pilots, informed of the CI?
Is it on your NAV LOG?
Do you know how the calculations are performed? i.e., the contributing cost-benefits analysis?
Is your SOP to then endeavour to fly as close as possible (circumstances permitting) to the FMC computed OPT ALT's? Even if it isn't an actual SOP, is it a taught consideration?
Is it appreciated that if one always uses a constant CI, all you are doing is using the CI to achieve a particular schedule of CLB, CRZ and DES speeds?
All comments appreciated.
