Didn't Al run some numbers the last time ceramic coating went around the

list?  I remember him predicting a 15 degree delta, but I can't recall

what the delta applied to.

 

Al, when you ran those numbers, were you able to take into account that

the smoother surface would possibly help create a laminar boundary layer

at the rotor face.

 

I don’t recall doing analysis on rotor coatings; I think it was exhaust coatings.  I just calculated the temp drop across the thin ceramic coating; which would be about the same for a rotor.  My super computer was on the kaputz, so I couldn’t do the boundary layer turbulence analysis; I doubt there is much laminar flow in there. 

 

Al

 

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