Who Assigns Cost Index


#1

Is the cost index for a flight (e.g., KLAX to KDFW on an AAL B738) assigned by dispatch after taking a look at the load, the weather, the routing, etc., or is it a company standard number for a particular route?


#2

For what purpose?


#3

For what purpose? Well, if a pilot is going to use 50 (or 10, or 100, or whatever), where did that number come from? I know what it does, I want to know if it comes from dispatch or somewhere else. I’m pretty sure it does NOT come from the flight crew.

Does anybody know?


#4

You weren’t clear you were talking about the number used by pilots in the FMC for flight planning.

This indicates that it’s pretty much standard fleetwide: forum.avsim.net/topic/336375-cos … -database/

There’s another different type of cost index used by airline management.


#5

Thanks for the link–very interesting. That (more than) answers my question.