Turbofan Engines Basics and Analysis

In this video I talk about the basics of turbofan engines, then I do an example problem of a non-ideal turbofan engine with an after burner and analyze all the different temperatures and pressures at each state.
Disclaimer: Do not take the information provided here as absolute fact. Please do your own research first.

[@Harry-fr1iz]

I am guessing \eta_s is shaft efficiency