Application of Multiple Handle Gas Path Analysis on a Twin Spool Turbofan Engine

In this paper the development of multiple handle gas path analysis, an analytical approach that has two advantages over linear gas path analysis is described. Firstly,it allows all instruments to be used for diagnostics purposes, without having to use one to determine the baseline.The other advantage is that diagnostics can be crosschecked against one another to allow greater faith in the result.
ftp://ftp.rta.nato.int