UltimateDelta From United States of America, joined Sep 2007, 2345 posts, RR: 5 Posted (8 years 1 month 2 weeks 2 days 12 hours ago) and read 6622 times:
Hi, everyone. I have a question involving the Airbus A380 and its thrust reversers. Why does it only have them on the inboard engines? It seems as if a plane that size could benefit from having four, so why only two? Thanks for any info you have to offer.
ThreeFourThree From Australia, joined Nov 2007, 222 posts, RR: 0
Reply 1, posted (8 years 1 month 2 weeks 2 days 12 hours ago) and read 6619 times:
It was deemed not necessary to even have reversers because the brakes are that good.
But they said they had to put at least 2 thrust reversers.
The A380's wings are huge and engines hang over the grass area and if they use reversers, they may have stuff fly into the engine.
BTW, this has been asked before, please use the search button
Modern brakes are many times more powerful than reversers. Size is somewhat inconsequential in itself since with increased size comes increased number of axles, larger brakes etc... Compare the number of braked axles on a 380 (10) with the number of braked axles on a 737 (2). Add to that larger discs.
I'm still of the opinion that weight is the primary reason the A-380 does not have outboard thrust reversers. From previous threads on the subject, is appears that Airbus originally wanted to not have any thrust reversers at all.
JetMech split the back of his pants. He can feel the wind in his hair.
AutoThrust From Switzerland, joined Jun 2006, 1687 posts, RR: 9
Reply 7, posted (8 years 1 month 2 weeks 2 days 1 hour ago) and read 6529 times:
Its not only the brakes, its also the huge wing which allows the A380 to land a at the speed of a A320, thats about 132kn. Lower landing speeds are always a improvement of safety because you have to break less and obviously need less runway.
Jetlagged From United Kingdom, joined Jan 2005, 2620 posts, RR: 25
Reply 9, posted (8 years 1 month 2 weeks 1 day 23 hours ago) and read 6498 times:
Maybe A.net ought to have a list of Tech/Ops FAQs to stop the continual reposting of the same questions (A380 reversers, 767 landing gear, powerback, etc) followed by a mixture of correct answers and repeated myths.
It's all very well saying use the search facility, but if you ask the search engine the wrong question it finds nothing. Google it isn't.
The glass isn't half empty, or half full, it's twice as big as it needs to be.