Galaxy, I am all ears to how you and experts are going to demonstrate that an inner turbine wheel on a JT15D is some how manufactured to a lower standard then say your typical airline engine.
That's good to know though...the next time I do an engine overhaul I can now can call up Garret, Pratt, or Rolls and say...
'You know I heard on the internet that I can get a turbine wheel that will go 20000 cycles instead of the 5000 cycle one your trying to sell me'. and the response will be..
'Oh, yeah, that's the extra super duper turbine wheel that we only sell to the airlines, would you like one?