![COST INDEX aviation - [What it is, How to calculate it and a Simulator example]](/img/logo.svg){kind=logo}
The Cost Index is a ratio between the Time Operating Costs (excluding fuel) per hour and the cost of the Fuel per hour of the Aircraft.
The Time Operating Costs are the Maintenance costs, Pilot and Cabin Crew salaries, Departure and landing fees and so on. Basically, this cost is how much the Aircraft costs to the Operator per hour excluding the fuel.
The Fuel cost per hour is the fuel flow of the Aircraft expressed as an expense.
So, if the Aircraft burn 2000 litres of fuel each hour and the fuel costs 40 cents that means that the fuel hour cost is 800 Dollars.
The Cost Index is a value that the Airline, considering all the above costs, decides to use in order to have the most efficient operations.
You can find the Cost index, decided by the company, in the flight plan.
Once you insert the CI into the FMC the aircraft will fly at specific speeds during the climb, cruise and descend.
The CI range starts from 0 and ends to a value that varies depending on the Aircraft model.
The Boeing 737-800 has a range that goes from 0 to 500.
A low Cost Index will make you fly slow keeping the Fuel consumption low, while a High Cost index will make you fly fast keeping the Operating costs low.
If you have a problem with fuel costs then you want to keep a low-cost index, while if you have high Operating costs you want to fly fast using a high CI.
Watch the video regarding the FMC familiarization:
• Zibo 737 FMC SET UP - ...
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Disclaimer:
THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY.
NOT FOR REAL-LIFE OPERATIONS.
PLEASE REFER TO THE OFFICIAL MANUAL AND DOCUMENTATION.
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28 окт 2020
