Boeing 777 range with exit-limit pax
Thread Starter
Join Date: Jun 2019
Location: Tana
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
Boeing 777 range with exit-limit pax
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.
I'd be most grateful for any information.
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.
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.
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.
I'd be most grateful for any information.
Last edited by fdr; 20th Sep 2019 at 14:10. Reason: oops. image is 200LR.... te correct chart is below...
Thread Starter
Join Date: Jun 2019
Location: Tana
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
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.)
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.
Sorry, just noticed you seem to be using the other chart - but the principle is the same. The higher mass is extra fuel.
Join Date: Nov 2005
Location: Zulu Time Zone
Posts: 730
Likes: 0
Received 0 Likes
on
0 Posts
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.
The maximum range with maximum payload based on the chart provided is 5750 nautical air miles.
