Boeing 777 range with exit-limit pax

[UltraFan]

I keep seeing this number on Boeing 777 specs - exit limit 550 pax. And some Japanese airlines fly with the number close to it on non-ER -300. What would be the range of 777-300ER with full complement of 550 passengers and 20kg luggage allowance per capita, and appropriately stocked galley? I saw range charts for 777F but failed to find one for -300 or -300ER.

I'd be most grateful for any information.

[Wizofoz]

Spit- balling here, BUT-

Typical DOW of around 180 tonnes.

550 pax = about 55 tonnes, so ZFW of 235T

MTOW of 350T, so 115T of fuel.

@ 8t per hour, 14hrs to dry tanks, so about 12.5 hrs with reserves, so a zero wind range of around 5000NM at a tas of 480.

[UltraFan]

Thank you.

[fdr]

I keep seeing this number on Boeing 777 specs - exit limit 550 pax. And some Japanese airlines fly with the number close to it on non-ER -300. What would be the range of 777-300ER with full complement of 550 passengers and 20kg luggage allowance per capita, and appropriately stocked galley? I saw range charts for 777F but failed to find one for -300 or -300ER.

I'd be most grateful for any information.

NOT THIS ONE,,,,



https://cimg8.ibsrv.net/gimg/pprune.org-vbulletin/2000x1163/screen_shot_2019_09_19_at_10_12_57_pm_a4eed942a23b71d38f4367 314fb97616d9383d9e.png

[Wizofoz]

I think that graph is for a 300, not a 300ER.

[DaveReidUK]

I think that graph is for a 300, not a 300ER.

It's neither, it's for a -200LR.

[misd-agin]

Boeing website has this ^ information.

[fdr]

It's neither, it's for a -200LR.

that is the glossy from airport planning for the 200LR, my bad, picked up the wrong image....


THIS IS THE 300ER...


D6-58329-2 page 44/172


https://cimg1.ibsrv.net/gimg/pprune.org-vbulletin/1758x1256/screen_shot_2019_09_20_at_10_06_35_pm_94d4e8edb1b4a1c0677e42 9ed4252102757a0d4a.png

[UltraFan]

Is it me not understanding or is this diagram showing that the more weight you have the farther you'll go? Look at it. 350K kg gross weight will fly 8,500nm but, for example, 272K kg will only fly 6,000. (The diagonal lines.)

[Groundloop]

The chart states "Max. Zero Fuel Weight = 237,682KG" so for any value higher than this the extra mass is fuel. So 350K kg gross weight includes 78K kg more fuel on board than 272K kg.

Sorry, just noticed you seem to be using the other chart - but the principle is the same. The higher mass is extra fuel.

[oggers]

1) Enter the chart on the left axis with zero fuel weight (in plain english the aircraft plus crew, pax and cargo) 2) Move horizontally to take-off weight (diagonal lines) the difference between 1 and 2 being fuel onboard at TO 3) Move down to read range.

The maximum range with maximum payload based on the chart provided is 5750 nautical air miles.

[UltraFan]

Thanks to everyone who responded.