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Old 18th Apr 2010, 11:56
  #978 (permalink)  
Landroger
 
Join Date: Feb 2009
Location: Jungles of SW London
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Deaf

It's not just the maintenace it's also getting the parts. Things like turbine blades:

- Cannot be knocked up the local foundry/machine shop, they require specialized casting equipment for directional solidification/single crystal.

- The supply is tailored to 10k+ hours life

- The stock held is taiored to 10k+hours life

If the life is reduced to ~ 100hrs from a single exposure (as the Finnish results suggest) then one exposure + 1 week normal (no dust) short haul then AOG for years waiting for bits

True, up to a point Deaf, but that presupposes no other changes made in a changed environment. The local blacksmith will not be called upon, but the engine manufacturers might call upon trusted subcontractors to produce turbine blades at ten times the rate previously. With, one would hope, some economies of scale.

Also, if engines were not to be use limited by operating area, the manufacturers might divert some effort to making either; much more damage resistant components or, forget about curing the problem and merely fix the symptoms by making much, much cheaper turbine assemblies which are all but 'disposable' after so many hours?

Nobody said future costs were going to go down after all this.

Roger.
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