Hi guys i have read this thread from the first page to the last but i'm looking to start flight school soon . But i am seeing all this terms that are required by KA such as Gas T or Perf A which seem like licences or documents that i dont see in all the PPL,CPL,ME and IR courses . are these additional licenses or exam papers. And if they are how do you get them? I know Gas T is gas turbine but how do you get a license on gas turbine? Any help would be appreciated.