harty236
Outfitting in Hamburg
Posts: 974
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Post by harty236 on Oct 8, 2013 0:46:38 GMT 1
It seems that both A and B are struggling to sell their quadjets. DO you think it would be possible to make a twinjet version of the A380? I know each engine would have to produce ~150,000 lb of thrust each but do you think it could be done? The answer depends on the targeted MTOW. If targeted MTOW is about the same as an A380 or B748, there is no way to achieve that with a twin ! The aircraft must pass the "take-off with one engine inoperative" test, and no engine could do that in a foreseeable future. If however you say "trijet" instead of "twin", this is a horse of a different colour. Hmmm, like narrowbodies went from 4 engines (B707) to 3 engines (B727) to 2 engines (B737 etc) I wonder if a similar pattern will emerge with VLAs.
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Post by Flying Dutchman on Oct 8, 2013 6:24:36 GMT 1
They will eventually. 777-9X will have a larger passenger capacity than 747-100. (But no 3 engines)
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Post by limoncello on Sept 22, 2014 21:16:17 GMT 1
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Post by Flying Dutchman on Sept 22, 2014 21:49:11 GMT 1
Interesting. Mach 1,6 3 engines, why not two larger engines?
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philidor
in service - 6 years
Posts: 8,950
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Post by philidor on Sept 22, 2014 23:09:59 GMT 1
Interesting. Mach 1,6 3 engines, why not two larger engines? If I remember correctly, high speed requires low-bypass-ratio engines, so on a supersonic airliner the engines would not be as large as they are on present-day airliners.
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Baroque
in service - 2 years
Posts: 3,991
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Post by Baroque on Sept 22, 2014 23:46:10 GMT 1
Interesting. Mach 1,6 3 engines, why not two larger engines? The answer is in the article: But, there are probably other reasons too... I'm looking forward to seeing this become a reality - even though I may never get to ride it. We're well into the 21st century and we don't have a supersonic passenger liner.
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Post by Flying Dutchman on Sept 23, 2014 17:06:50 GMT 1
And this aircraft is slower and smaller than the Concorde.
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Post by Flying Dutchman on Sept 23, 2014 17:13:42 GMT 1
Interesting. Mach 1,6 3 engines, why not two larger engines? If I remember correctly, high speed requires low-bypass-ratio engines, so on a supersonic airliner the engines would not be as large as they are on present-day airliners. Yes I see now Concorde had 4 engines. But faster and much larger aircraft.
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Post by airboche on Nov 5, 2014 11:17:38 GMT 1
New topic: Rolls Royce has announced job cuts yesterday, 2600 jobs company wide. It looks like they focus on Allison in Indianapolis with most of the cuts but what does it mean in general for their Trents and Airbus? Is this delaying the A350-1000 or possible bigger versions? How about the A380NG? Is RR set to just "make money" and scales down development work now? www.ibj.com/articles/50334-job-cuts-to-hit-rolls-royce-operations-in-indianapolis
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XWB
in service - 11 years
Posts: 16,115
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Post by XWB on Nov 5, 2014 11:35:29 GMT 1
Not much. With development for T1000 and TXWB finished there's no need to keep all the engineers busy.
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