B777 Fuel flow
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B777 Fuel flow
Hi, can any B777 drivers please give me a guide figure on the fuel flow (all engines/hr) for B777-200IGW, -300ER &-200LR at TOC, Crz & TOD for a MTOW T/O and a max range weight T/O?
I am doing some research into fuel conservation methods and I need baseline data as a starting point.
Many thanks.
I am doing some research into fuel conservation methods and I need baseline data as a starting point.
Many thanks.
Join Date: Jun 2004
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loxol,
A good 'ball-park' figure is a mean of 7 Tonnes (7000 Kg) per hour. At medimum weight the B777-200 can be down to 6 Tonnes (6000 Kg) per hour.
That's mean figures, higher in the beginning, lower at the end, of course.
Regards,
Old Smokey
A good 'ball-park' figure is a mean of 7 Tonnes (7000 Kg) per hour. At medimum weight the B777-200 can be down to 6 Tonnes (6000 Kg) per hour.
That's mean figures, higher in the beginning, lower at the end, of course.
Regards,
Old Smokey
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loxol,
When you say "chock-on with" are you refering to the fuel remaining in tanks after the engine shutdown?
Final Reserve Fuel (15 mins holding at 1500feet) is about 2700kgs. However, we usually arrive on stand with about 7 tons remaining in a B777-200ER ("B market" or "IGW" being the old designations for this model).
When you say "chock-on with" are you refering to the fuel remaining in tanks after the engine shutdown?
Final Reserve Fuel (15 mins holding at 1500feet) is about 2700kgs. However, we usually arrive on stand with about 7 tons remaining in a B777-200ER ("B market" or "IGW" being the old designations for this model).
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B777 fuel
Thanks False
I am a former B777 op guy, but a while ago now. What interests me most is the somewhat eclectic protocols between and within airlines for several parameters - fuel in tanks at shut-down being one of them. I have a lot of experience in this over several airlines and several [heavy] aircraft types. My aim is to consoliadate and promote "best practice" as a precurdor to further work, as fuel becomes increasingly expensive and ultimately, scarce, pending alternative power scenarios.
Cheers and Happy Easter or Songkran, depending where you are.
Lox
I am a former B777 op guy, but a while ago now. What interests me most is the somewhat eclectic protocols between and within airlines for several parameters - fuel in tanks at shut-down being one of them. I have a lot of experience in this over several airlines and several [heavy] aircraft types. My aim is to consoliadate and promote "best practice" as a precurdor to further work, as fuel becomes increasingly expensive and ultimately, scarce, pending alternative power scenarios.
Cheers and Happy Easter or Songkran, depending where you are.
Lox
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Our company's fuel policy is to carry alternate fuel + fixed reserve on all occasions, or 60 minutes at the primary destination, whichever is the greater. As a consequence of operating to a great number of destinations with nearby alternates, the 60 minutes at the destination usually rules. This means typical "Chocks On" fuel in the vicinity of 7 to 8 Tonnes.
I'm comfortable with that.
Regards,
Old Smokey
I'm comfortable with that.
Regards,
Old Smokey
