I hate to say this, but the "maintenance" article that SM is referring to in his post is total crap.
I am quoting from the article:"
The guide vane sends gas from the compressor onto the blades and makes the rotors turn.
That sentence alone shows total ignorance of subject.
Yes, we all know the sad situation governing the US EMS industry, yes it is sad that four persons perished, but SM has been correct before and while his post jumps to conclusions a bit prematurely, personal attacks are not entirely justified nor appropriate.