Originally Posted by
onetrack
...the high cost of the aircraft engine is related to total dis-assembly, and hand re-assembly... with blueprinting and modification of the engine, the main aim, to meet the more rigorous requirements of aircraft useage. Component balancing to much tighter levels than automotive requirements is high on the list... as is checking of all components for meeting precise specifications.
This and most of what followed is a load of rot!
Aero engines are expensive because:
1 - of lawyers and the illogic of joint and several liability
2 - the extremely low production volumes
3 - because they can be.
The aero engne industry could learn a lot from the automotive sector if it weren't for the scoundrel lawyers getting in the way of progress!