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General >> Hangar talks >> On the A380
https://www.captainsim.org/forum/csf.pl?num=1317705282

Message started by boeing247 on Oct 4th, 2011 at 5:14am

Title: Re: On the A380
Post by pj747 on Oct 12th, 2011 at 12:23pm

CoolP wrote on Oct 12th, 2011 at 9:08am:
One main reason why the A380 has no reverser on the outboard engines are that they are too far over the non-paved strip of standard runways.
'Stopping power' is managed on that plane and incorporates a "brake to vacate" feature for example, as a world's first. So while reverse thrust is a way to decelerate, it's not the only one. But they of course use the inboard engines for it.

All certification stuff regarding the fitting of a brake system onto a plane is done with the wheel brakes only, so they have to be able to handle the plane within a certain distance and time, which takes usual available runway length for that plane's category into account.


As a side note, please be aware that real pilots usually avoid landing downwind.  ::)  :P
This helps the stopping distance significantly as the amount of kinetic energy is reduced. So chose your landing runway wisely and you don't have to develop big concerns about stopping power.  8-)


And regarding 'loud', I don't know. If you can point me to a jet engine being 'quiet' in the way people relate the word quiet, this would actually be a first.
However, the inflight noise and also the one on the flyby is very low for the A380 and should be at the lowest noise to MTOW value among all currently flying aircraft.

However, boing247's thread question is a good one.
Me says that every new plane will somehow please the passengers since the interior is updated to modern or even future standards, which of course always aims at your 'it's nice here, I will come back' mood.  :)

On a big ship like the A380, this will even be more stressed since it receives a small negative impact from the sheer amount of people around you.
So while the business class guy may be happy at most places, the economy flyer is more critical in that aspect.
I think the plane's camera views are a nice feature for everyone though.


Why would it matter if the engines are over the paved part of the runways?

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