T700 1st Stage Turbine Nozzle Sand/Salt Phobic Treatment Concept Demonstration – Phase III

NCMS Project #: 140935

Problem: Aero gas turbine engines operating in particulate-laden environments experience premature component damage due to fine particle agglomeration in turbine cooling passages leading to blockage and loss of cooling. Deposition on the external surfaces of the vane can also restrict engine mass flow and increase aerodynamic losses.

Benefit: Commercial aerospace companies depend on their engines as their lifeblood. By saving costs on engine maintenance and sustainment, the company may become more competitive in the global economy, and whether their industry is passenger or the transportation of goods, they may become the preferred vendor and realize an upswing in their bottom line. When an engine becomes cleaner and more reliable, it also becomes safer. Pilots and crew benefit from safer, clean engines and their job satisfaction may increase because of it. Any industry that depends on an engine with airfoils will realize improvement with this technology.

There are many areas and equipment systems where this coating could assist in the increased lifecycle of gas turbine engine compressors throughout the DoD. Aircraft are a major investment and decreasing the maintenance and sustainment costs, as well as extending the productive lifespan of the asset is of paramount importance.

Solution/Approach: The overall work plan synopsis remains unchanged from Phase II. The program extension is in recognition that the original request was too ambitious given the numerous uncertainties with regard to testing capabilities, government furnished equipment availability, and unexpected delays in program direction from NAVAIR. Deposition testing on the AE1107C nozzle guide vanes (NGV) will leverage recent experience from testing the T700 NGV in the TuRFR II facility under Collaboration Agreement #201630-140824 with NCMS. Testing on the AE1107C will be conducted with the Legacy and Block III designs as well as a modified Block III design.

Impact on Warfighter:

  • Improved warfighter readiness and time-on-wing
  • Increased engine life
  • Decreased maintenance and sustainment costs
  • Improved safety

DoD Participation:

  • NAVAIR (Patuxent River)

Industry Participation:

  • Ohio State University
  • Rolls Royce
  • NCMS

Benefit Area(s):

  • Mx avoidance & reliability
  • Safety
  • Mx management improvement
  • Improved readiness
  • Survivability
  • Durability
  • Reliability improvement

Focus Area:

  • Reliability improvement