1. Thermal Protection System Testing in High Enthalpy Facility Richard French Vitaliy Grigoryev November 17, 2005 Team HEaTT Progress Report #4

2. Summary Schedule Update Testing Update Improvements Preliminary Lessons Learned Immediate Needs

3. Schedule

4. Testing Overview - Ongoing Fully Characterize HETF - Test Section Temperature Profile - Mounting Stand Conduction - Wall Temperature Axial Temperature Probe

5. 1 meter Uni-strut 7 J-type thermocouples Variable Test-to-Test Flame Temperature - Raise and lower on pulley system

6. Testing Overview - Planned Establish Effective Operating Procedures - Wire Harness Protection - Measurement Confidence - Test Duration Limits Shuttle Tile Sample Test

7. Improvements High temperature thermal cement for thermocouple interface Better wire harness shielding Pitot Probe re-positioned to rear, with thermocouple installed

8. Preliminary Lessons Steady state measurements difficult to obtain - Temperature fluctuations due to non- uniform flow Thermal inertia of Test Stand, Axial Probe may affect measurements

9. Immediate Needs High temp thermocouple for measuring flame temp Verify thermocouple calibration Digital Data Acquisition System K-thermocouple wire to make better use of analog equipment Space Shuttle Tile!!!

10. Thanks QUESTIONS?