1. Hatchmoor Industrial Estate, Torrington Devon EX38 7HP, UK www.helitune.com Phone +44(0)1805 624650 Fax +44(0)1805 624 689 Health Monitoring in Helicopters KTP Regional Seminar By Steve Pollard

2. page 2 Introduction  Partners  Project  Background  Project Achievements  Conclusion

3. page 3 KTP Partners  Company Partner – Helitune Ltd -Provides Aircraft Vibration Solutions for Rotor Track & Balance (RTB) -Customers in over 30 countries worldwide  Academic Partner - University of Bristol -Aerospace Engineering -Bristol University Laboratory for Advanced Dynamics Engineering (BLADE)

4. page 4 Project Overview  Aims -Develop a ‘next generation RTB algorithm’ -Embed human expertise within Helitune’s products  Scope -3 year project -2 associates

5. page 5 Why do we need vibration reduction?

6. page 6 Business Case  RTB is essential maintenance  Accounts for 5-12% of all flight hours  Effects of vibration costs 2.5-3 hours of maintenance per flight hour  Reducing flights quickly generates large cost savings for operators

7. page 7 An RTB primer  Series of test flights to collect vibration data  Adjust the rotor in between flights (not in-flight!)

8. page 8 History/Development  Early Manual Methods -Flag tracking  Electronic Methods -Digital Signal Processing  Next Generation -Solve track & balance simultaneously

9. page 9 Achievements to Date  Successful flight trial at RUAG in Germany

10. page 10 Achievements to Date  CH53 implementation  UH-60 Wind Tunnel Trial  A109 LUH remote trials

11. page 11 Achievements to Date  Wind Turbine Tracking  UH-1D Concept Study  AW101 Merlin – Onboard system

12. page 12 Summary  Benefits to date -Algorithm in use -Improved predictive capability for equipment -Results show reduction in number of flights needed -KTP has won substantial business for the company -Networking opportunities for both Company and University  Looking Forward -Further algorithm development -Add ‘intelligence’ -2 nd KTP established

13. page 13 Questions?