Data Basis for Flight Models

[Schorsch]

Hello everybody,

 

I am searching for drag and lift information of jet fighters. I was told that I should check out this page. Well, I did download some of the skins with according data-files and checked the content. I would like to know how most of the models were generated, what was the data source?

I am especially focussed on the Drag versus Mach and Drag versus Alpha. The other stuff is secondary.

 

My intent is to find out if the drag/lift characteristics of these models are somehow accurate and can be used to get some kind of idea of the real aircraft's performance.

 

Thanks in advance for replies.