mjoelnir
in service - 2 years
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Post by mjoelnir on Feb 27, 2019 15:35:34 GMT 1
Both the standard A350-900 with 138,000 l and A350-1000 with 156,000 l, do not use the possible maximal volume of the A350 fuel tanks. The A350-900ULR with 165,000 l uses the same fuel tank. So even on the A350-1000 could expand tankage with the same physical tank.
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marlibu
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Post by marlibu on Feb 27, 2019 17:27:36 GMT 1
Withbwhat limited knowledge we have, does anyone know if offering the 165,000 litres negatively affects thebperformance of the standard -900 or -1000 variants? It would seem you could be able to sell this feature as an "add-on" or additional feature. Having said that, i really do not know the additional flying gained with that much more fuel..
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Baroque
in service - 2 years
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Post by Baroque on Feb 27, 2019 19:51:55 GMT 1
Withbwhat limited knowledge we have, does anyone know if offering the 165,000 litres negatively affects thebperformance of the standard -900 or -1000 variants? It would seem you could be able to sell this feature as an "add-on" or additional feature. Having said that, i really do not know the additional flying gained with that much more fuel.. Bjorn on leehamnews has a comprehensive write-up that might answer your question. Check this out. leehamnews.com/2015/10/23/bjorns-corner-increasing-an-aircrafts-range-further-considerations/
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sciing
in service - 1 year
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Post by sciing on Feb 28, 2019 9:05:58 GMT 1
Withbwhat limited knowledge we have, does anyone know if offering the 165,000 litres negatively affects thebperformance of the standard -900 or -1000 variants? It would seem you could be able to sell this feature as an "add-on" or additional feature. Having said that, i really do not know the additional flying gained with that much more fuel.. With that much fuel the payload is so low that a standard A35K would likely have to block half of the seats. Every ton of fuel is bought by payload reduction. There are 2 crosspoint/kinks of 3 straight lines in the payload range charts. The 1st line is maximum payload is defined as MZFW (maximum zero fuel weight) - OEW(empty weight). 2nd line is between the 1st and 2nd kink. After the range of the 1st kink you are MTOW limited and any more fuel will reduce the maximum payload. Any MTOW increase shifts the 2nd line more or less parallel to the right. The steepness of this line is defined by the fuel consumption. Fore more efficient engines the line drops more shallow. The 3rd line is after the 2nd kink. This is the fuel limit range. After that point you can still increase the range slightly by reducing payload, because the aircraft gets lighter. If you increase the tank volume you shift this 3rd line and the 2nd kink to the right. If the 2nd kink is already at a very low payload an tank increase make no sense. A very detailed explanation could be found here. www.aircraftmonitor.com/uploads/1/5/9/9/15993320/aircraft_payload_range_analysis_for_financiers___v2.pdf
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marlibu
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Post by marlibu on Feb 28, 2019 12:29:50 GMT 1
Thank you very much.
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kronus
in service - 1 year
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Post by kronus on Mar 10, 2019 5:39:04 GMT 1
I hope that will be true:
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kronus
in service - 1 year
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Post by kronus on May 28, 2019 5:32:34 GMT 1
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Post by kevin5345179 on Jun 13, 2019 19:19:45 GMT 1
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philidor
in service - 6 years
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Post by philidor on Jun 14, 2019 12:55:24 GMT 1
another 3t increase for A35K MTOW? You are right ! 319 tonnes is now official !
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Post by fanairbus on Jun 14, 2019 13:23:12 GMT 1
Thanks so much Kevin for pointing me towards an unknown but so informative area of the Airbus site!
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