[Diy_efi] This turbo assist stuff, suggestions

[Mike Schwall]

Correct, the materials are applied using plasma spray process.  Though
I've heard of it used in power generation turbines, not sure exactly
what coating materials are used in the military and high output
commercial engines.  The PW4056 is one of the available engines used in
the 747 (thrust depends on 747 series).  The PW4056 is a 56,000lb thrust
model with 94" diameter fan.

Guess I should introduce myself since I'm new here.  I work for Veridian
Engineering.  My main function is to provide support for our robots that
are used to perform eddy current inspection of military jet engine
parts.  Our robots are used around the globe with foreign military
forces as well as jet engine part manufacturers.  My work is mostly on a
US AFB, but have done support for Pratt & Whitney, Techspace Aero in
Belgium, and two foreign military forces.  I have a good electronics
background and currently supplementing my education with a degree in
Mechanical Engineering and later Aerospace Engineering.

Mike



> -----Original Message-----
> From: diy_efi-admin at diy-efi.org 
> [mailto:diy_efi-admin at diy-efi.org] On Behalf Of Jay Wallace
> Sent: Wednesday, January 01, 2003 7:31 PM
> To: diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] This turbo assist stuff, suggestions
> 
> 
> For those who haven't completely tired of this thread...
> 
> I believe that the turbine blades in the 747 are not ceramic but are 
> ceramic coated - thermal barrier coating consisting of 
> zirconium oxide - 
> yttrium oxide probably put on by physical vapor deposition. 
> These coatings 
> are classified as not prime reliant (or some such) meaning 
> that if the 
> coatings fail, the entire engine does not fail.
>SNIP
> 
> Jay


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