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B-1B AOA Calibration Interface

B-1B AOA Calibration Interface. R.N. Parthasarathy, PhD, Associate Professor A.K. Agrawal, PhD, PE, Associate Professor R.A. Koepp, Graduate Research Assistant S.E. Franke, Undergraduate Student Assistant School of Aerospace and Mechanical Engineering University of Oklahoma.

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B-1B AOA Calibration Interface

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  1. B-1B AOA Calibration Interface • R.N. Parthasarathy, PhD, Associate Professor • A.K. Agrawal, PhD, PE, Associate Professor • R.A. Koepp, Graduate Research Assistant • S.E. Franke, Undergraduate Student Assistant School of Aerospace and Mechanical Engineering University of Oklahoma

  2. Project Overview • Identify problems associated with the current system. • Discuss ideas for a new system with Avionics employees. • Develop a less problematic and more efficient system. • Build and test new system.

  3. Background • The B-1B has 6 pitot probes, 3 on each side of the forward equipment bay. • The pitot probes provide aircraft speed, altitude, and angle of attack (AOA). • Pressure measurements from the pitot probes are sent to Air Data Transducers (ADT) that convert the pressures to electrical signals. • The ADTs, therefore, need to be calibrated. • Leaks must be located and fixed.

  4. Current System

  5. Current System

  6. Current System

  7. Current System Problems • Very messy. • Prone to leaks. • Prone to wear and tear. • Possible damage to transducers. • Inefficient. • Not standardized. • Portability problems. • Time consuming.

  8. New System Design

  9. New System Design

  10. New System Design

  11. New System Advantages • Simple. • Standardized. • Easier and faster leak detection. • No chance of damaging transducers. • Easy portability. • Color-coded. • Calibration can be completed in allotted time. • Inexpensive.

  12. Comments From Employees • “Much simpler than the old system.” • “This is so much better than that big mess we have now.” • “We got the leak check done in one day. It would have taken probably two or more days with the old system.” • “This is great! I wish we had this a long time ago.” • “It’s so easy to leak check. Really, it’s great!”

  13. Conclusions • The new system works. • It is much simpler and easier to use than the old system. • It is much simpler to detect leaks. • No risk in damaging transducers. • Saves both time and money. • Highly regarded by employees and management.

  14. Additional Notes • Some employees were reluctant to use the new system… • After seeing how well it works, they did not hesitate to give their praise and support. • Ideas from the employees were used in the design, which was appreciated.

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