Energy Management - Introduction and Practical Applications
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Energy Management - Introduction and Practical Applications
- 1. Presented to: By: Date: Federal Aviation AdministrationEnergy Management Introduction And Practical Applications CFI Seminar Bob Jex, ASI 5 Jan 2013
- 2. Federal Aviation Administration 2 Energy Management – Intro & Practical App’s 5 Jan 2013 Overview • What is Energy Management? • Who uses Energy Management? • Why GA community needs it • Types of energy we manage in flight • Practical applications: – Power Table – Power-Off 180 planning
- 3. Federal Aviation Administration 3 Energy Management – Intro & Practical App’s 5 Jan 2013 Disclaimer • This presentation does not change current FAA policies or regulations • Objectives are to: – Introduce a new concept – Expand your thinking, generate discussion – Give you tools you can use immediately – Most importantly: Prevent accidents!
- 4. Federal Aviation Administration 4 Energy Management – Intro & Practical App’s 5 Jan 2013 What is Energy Management? (Not THIS kind!)
- 5. Federal Aviation Administration 5 Energy Management – Intro & Practical App’s 5 Jan 2013 Who uses Energy Management?
- 6. Federal Aviation Administration 6 Energy Management – Intro & Practical App’s 5 Jan 2013 Fighters use Energy Management!
- 7. Federal Aviation Administration 7 Energy Management – Intro & Practical App’s 5 Jan 2013 Airshow performers use it!
- 8. Federal Aviation Administration 8 Energy Management – Intro & Practical App’s 5 Jan 2013 NASA uses Energy Management!
- 9. Federal Aviation Administration 9 Energy Management – Intro & Practical App’s 5 Jan 2013 Airliners use Energy Management!
- 10. Federal Aviation Administration 10 Energy Management – Intro & Practical App’s 5 Jan 2013 Gliders use Energy Management!
- 11. Federal Aviation Administration 11 Energy Management – Intro & Practical App’s 5 Jan 2013 Why GA needs Energy Management • Leading Flight Training accident & incident causes: – Stall / Spin – Loss of control on landing • Many are due to mismanaged energy!
- 12. Federal Aviation Administration 12 Energy Management – Intro & Practical App’s 5 Jan 2013 Goals of Energy Management in GA • Efficient flying • Develop kinesthetic sense in pilots • Reduce accidents in leading areas
- 13. Federal Aviation Administration 13 Energy Management – Intro & Practical App’s 5 Jan 2013 Types of energy: • Kinetic – Airspeed! • Potential – Altitude! • Total = Kinetic + Potential • “Energy Bowl” concept
- 14. Federal Aviation Administration 14 Energy Management – Intro & Practical App’s 5 Jan 2013 Two practical applications • Power Table • Power-Off 180 planning
- 15. Federal Aviation Administration 15 Energy Management – Intro & Practical App’s 5 Jan 2013 Power Table Power Table: _____________________ (Model) Profile Pitch Power A/S VSI Remarks Vy Full Vx Full Cruise Climb 75% Cruise 65% 0 Holding 0 < 3 min til fix -500 fpm; Clean -500 Init Segm’t; Vec. Final S & L; Apch Flaps; Gear up 0 Intermed. Segment ILS Final: Apch Flaps; Gear down On GS Re-trim as necessary after any profile change. Notes:
- 16. Federal Aviation Administration 16 Energy Management – Intro & Practical App’s 5 Jan 2013 Power-Off 180 Approach & Landing • Commercial ASE proficiency maneuver • Typically flown in complex singles • Develops skills for engine-out approach • Described in AFH, Chapter 8
- 17. Federal Aviation Administration 17 Energy Management – Intro & Practical App’s 5 Jan 2013 Aero Review “Bucket point”
- 18. Federal Aviation Administration 18 Energy Management – Intro & Practical App’s 5 Jan 2013 Glide Performance (Complex ASEL) Check Assoc’d Cond’ns
- 19. Federal Aviation Administration 19 Energy Management – Intro & Practical App’s 5 Jan 2013 Excellent reference (since 1944)! Check it out: Chapter 14: The Glide
- 20. Federal Aviation Administration 20 Energy Management – Intro & Practical App’s 5 Jan 2013 Re-visit the drag curve - “Back-Wall” scenario “Front- Wall” scenario
- 21. Federal Aviation Administration 21 Energy Management – Intro & Practical App’s 5 Jan 2013 Review of two key landing terms: • Aiming point • Specified Touchdown point • They are not the same!
- 22. Federal Aviation Administration 22 Energy Management – Intro & Practical App’s 5 Jan 2013 PTS:
- 23. Federal Aviation Administration 23 Energy Management – Intro & Practical App’s 5 Jan 2013 Review: Energy Management • Other communities already use it • Foremost flight training accident causes • Two basic types of energy to manage – Kinetic – Potential • Power Table • Power-Off 180 planning
- 24. Federal Aviation Administration 24 Energy Management – Intro & Practical App’s 5 Jan 2013 Questions? Bob Jex, ASI Orlando FSDO 407-812-7727 Robert.jex@faa.gov
Notes de l'éditeur
- The fighter community worldwide: dogfighting to win
- Sport Aviation, Vol 60, No. 6, June 2011.
- NASA – Shuttle re-entry profile is all about energy management! “Terminal Area Energy Management”
- Air Carrier community; to optimize operating efficiencies
- Gliders – lift and performance efficiencies, variometer instrument
- Here, Potential Energy is Gravitational Potential Energy. Not considered for this discussion: Chemical potential energy.
- Ref: old Flight Training Handbook c1980, Chap 17.
- Diet industry always says: Your actual results may vary! What if your glide conditions aren’t the same as the ones in the chart? For example: GW < MGW: fly a slower speed for the optimum AOA; Gear down: Adds parasitic drag; fly a slower speed for optimum AOA. Headwinds: Need to fly faster than no-wind glide speed. Kinetic Energy reserve: Need to fly faster than no-wind glide speed.
- © 1944! Discusses technical aspects of flying without burdening reader with incomprehensible formulae.
- Note touchdown tolerance: -0/+200. No mention of speed or aiming point, or adjustments. That is supposed to be covered in the reference.