-> and I think Mke will find that the blades on the turbine wheel are
-> every EXPENSIVE due to the metals used.
By George, I think you're RIGHT!  
My nephew used to work at Kelly field (San Antone) where they
refurbished those blades.  He said they'd sometimes work on one of them
for four or five hours only to eventually throw it away.
Made a refurbished blade VERY expensive.
 ^..^
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