This just shows that you don't know what "tactical cost index" means or a "target landing window" for that matter.

We have a cost index, that is what your release is planned at and that is how other airlines use the term as well. The tactical cost index is if you adjust your speed or the cost index itself based on changing situations such as arriving very early or running late and want to tell the company that you did so. Tactics isn't just a military term.


Since you don't know what tactical cost index is, I'm going to guess you don't know that the target landing window is what you are supposed to use to determine whether to use a tactical cost index.

I've never heard anyone use Aircraft Commander and "flight leader" for the A line flight attendant seems to be fairly common.