Accession Number:

ADA371485

Title:

T-55 Engine Compressor Stator Vane Investigation

Descriptive Note:

Final rept. Mar 97-Oct 98

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1999-11-01

Pagination or Media Count:

69.0

Abstract:

The U.S. Army Aviation and Missile Command AMCOM requested the U.S. Army Research Laboratory Weapons and Materials Research Directorate ARL-WMRD investigate a corrosion problem with T-55 engine stators. This investigation was part of a second source vendor qualification in which a specific vendor was failing the engine test due to significant corrosion. The stators were virtually identical before the engine test and seemingly had passed all qualification standards. The original equipment manufacturer OEM of the T-55 engine stator was Avco Corporation - Lycoming Division, Stratford, CT. The second source vendor being qualified was Electro-Methods Incorporated EMI, South Windsor, CT, and EMIs coating subcontractor Microfin Corporation, Providence, RI. ARL-WMRD performed a detailed investigation that stipulated several recommendations. Some of these recommendations were adopted, and further testing was performed. The final testing of the T-55 stators that incorporated the ARL-WMRD recommended changes provided data that indicated the engine test would be successful. Upon subsequent engine testing, acceptable results were achieved with the new corrosion resistant coating system.

Subject Categories:

  • Coatings, Colorants and Finishes
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE