AGT1500 Gas Turbine Engine Update
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Kevin Kauth, TARDEC
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Q1. Bill Queener USAF  AFSC/LGMI: Was there any observed effect of the coatings on glass deposits?
A1. Raw uncoated engine at first showed no degradation. When the sand injection rate was increased we did see a reduction in horsepower and a decrease in air flow. We did see glassing at high sand injestion rates. I ca’t say it was due to the coating or not. The M-1 accepts a 40% drop in power before turning into depot for maintenance. 70-80% is caused by recuperator loss. The remaining is the compressor.

Q2. Greg Kilchenstein: can you discuss the condition of the coated and uncoated HP01 blades post sand ingestion test
A2. There is a significant improvement in maintaining existing material on the coated blades.  

Q4. GREISSINGER, JAMES A Mr. USN USN: For MCT: Implementation and sustainment of airfoil coatings can be costly. What is being done to make coatings more cost effective? 
A4. The price is driven by volume.