ICAO Madrid May 2002 - Morris - Weight Management
- 1. Aircraft Panel - Madrid 21-22 May 2002 AVIATION OPERATIONAL MEASURES FOR FUEL AND EMISSIONS REDUCTION WORKSHOP Weight Management Kevin M Morris Manager Environment, British Airways
- 2. Aircraft Panel - Madrid 21-22 May 2002 Weight Management Weight effects on fuel and CO2 Weight reduction initiatives - a few examples Tracking weight growth and fuel efficiency Epilogue: To paint, or not to paint - that is the question
- 3. Aircraft Panel - Madrid 21-22 May 2002 Conflicts Weight minimisation - easy to see the benefits BUT..... There are usually conflicts with other policies as well
- 4. Aircraft Panel - Madrid 21-22 May 2002 Why look at weight? A rule of thumb: additional fuel requirement: =3-4% of weight increase x hours flown e.g. extra weight = 500 kg flight time = 10 hours extra fuel burn = 150-200 kg extra CO2 = 470 - 630 kg For Every Flight!
- 5. Aircraft Panel - Madrid 21-22 May 2002 Fuel cost of Weight assuming 5,000 hours/year extra fuel burn = 87 500 kg extra CO2 = 276 000 kg extra cost = $ 22 000 and thats just the fuel! Weight control is important
- 6. Aircraft Panel - Madrid 21-22 May 2002 Catering - a lot of weight!
- 7. Aircraft Panel - Madrid 21-22 May 2002 Potable Water Aircraft carry potable water in water tanks for use in flight Not all are necessarily required, but mostly always filled to capacity
- 8. Aircraft Panel - Madrid 21-22 May 2002 Potable Water Blanking off 1, out of 3 potable water tanks for medium-haul B777-200, prevents their use 100kg of water, per flight not loaded Annual savings estimated as 380 tonnes fuel, 1 200 tonnes CO2
- 9. Aircraft Panel - Madrid 21-22 May 2002 Plastic cutlery Post 11th September 2001 Many new measures to improve security Most add weight One actually reduces weight - plastic cutlery
- 10. Aircraft Panel - Madrid 21-22 May 2002 Plastic Cutlery Using one route as an example Weight reductions (LHR-NY): Concorde - 34.26 kg B747-400 - 32.60 kg B777-200 - 34.40 kg Equates to: 52 t/yr fuel ($ 13k) 165 t/yr CO2
- 11. Aircraft Panel - Madrid 21-22 May 2002 Conflicts BUT THEN WHO LIKES EATING WITH PLASTIC CUTLERY?
- 12. Aircraft Panel - Madrid 21-22 May 2002 Modifications
- 13. Aircraft Panel - Madrid 21-22 May 2002 Concorde - weight goes up Additional weight due to: Fuel tank liners - 400 kg Unusable fuel - 200 kg Total extra weight: 600 kg per aircraft
- 14. Aircraft Panel - Madrid 21-22 May 2002 Concorde - weight goes down Reduction in weight due to: New cabin interior - 350 kg New tyres - 164 kg Total weight reduction: 514 kg per aircraft
- 15. Aircraft Panel - Madrid 21-22 May 2002 Concorde - weight the same? Weight change summary: Increase - 600 kg Reduction - 514 kg Overall - 86 kg increase Modifications can make a difference!
- 16. Aircraft Panel - Madrid 21-22 May 2002 Modifications
- 17. Aircraft Panel - Madrid 21-22 May 2002 Modifications Modifications usually add weight Important to ensure that mods are fully removed when no longer required! One of the reasons for unaccounted weight growth
- 18. Aircraft Panel - Madrid 21-22 May 2002 Monitoring and Control Cant control what you cant measure Modifications (mandatory & other) Unaccounted weight growth Tankering of fuel Extra fuel requirement, Emissions Extra expense, less profit!
- 19. Aircraft Panel - Madrid 21-22 May 2002 Monitoring and Control Weight Watchers track aircraft weight over time monitor the actual weight of mods Fuel Efficiency Group track aircraft fuel efficiency over time Allows the use of statistical contingency fuel (worth $7M per year to BA) Saves fuel/money/Environment
- 20. Aircraft Panel - Madrid 21-22 May 2002 Paint - who needs it? Paint weighs a lot! A320-200, approx. 110 -150 kg B747-400, approx. 410 - 550 kg But it also provides a service: Protection - helps prevent corrosion Ensures a smooth surface Provides an identity
- 21. Aircraft Panel - Madrid 21-22 May 2002 So - who does need paint?
- 22. Aircraft Panel - Madrid 21-22 May 2002 AVIATION OPERATIONAL MEASURES FOR FUEL AND EMISSIONS REDUCTION WORKSHOP Thank you !