A380 and airport ( runways )

A350XWB · Post by **A350XWB** » 31 Jul 2007, 15:43

Airbus gets EU, US nod to operate A380 on most of world's runways

The European Aviation Safety Agency and the American Federal Aviation Administration gave the nod to the A380 on 45-meter (147-feet)-wide runways following airport compatibility checks and flight-testing, Airbus said in a statement.

http://www.iht.com/articles/ap/2007/07/ ... s-A380.php

Ruscoe · Post by **Ruscoe** » 01 Aug 2007, 07:13

If I remember correctly, the problem with runway width was FB ingestion via the outboard engines. Thrust reverse debri is obviously not a problem because there are not any thrust revers on the outboard engines. The outboard engines are a long way above the ground so FB ingestion may not have turned out to be a problem.

Ruscoe

RC20 · Post by **RC20** » 02 Aug 2007, 19:51

I think what it really does is clear it to operate into places it normally would not be going.

All the regular stops will want to ensure good clearance. Anchorage did a lot of update work to ensure it would (none coming here now, but we will see the 747-8F).

Oddly, this also may benefit Boeing, as the 747-8 is very close to the same wing width (not as fat, but nearly as long).

They would have to restrict use of thrust reversers to the inboard engines.

It does make you wonder how much brake wear increase the A380 will have without all 4 thrust reversing.

Like everything else, its not just what its in-flight fuel burn is (though that’s a huge factor), but what its total operating costs are (and out of service time to deal with that sort of thing). Same for the high pressure hydraulic system, and aluminum wiring.

Homo Aeroportus · Post by **Homo Aeroportus** » 02 Aug 2007, 20:19

RC20 wrote: Oddly, this also may benefit Boeing, as the 747-8 is very close to the same wing width (not as fat, but nearly as long).

Not quite so.

It is true that the 747-8 will have a larger wingspan than the current 744 :

Boeing Airport Compatibility Brochure March 2007 :
The raked wingtip will increase the 747’s wingspan from
today’s 213 feet (64.9 meters) to 224 feet 7 inches (68.5 meters) jig position.

But it is still far from the A380 wingspan 79.75m

Outboard engines are 41.66m apart on the 747-8 and 51.40 on the A380.

So theoretically a 45-meter wide RWY with 2 shoulders of 7.5m is OK but to cope with possible offset position a 60-meter width makes it more comfortable.

The published RWY width required for a U-turn is 52 meters for the 747-8 and only 51 m for the A380 but the latter with differential trust and braking, so in all terms yes the A380 is a beast of its own.

Now on TWYs, thanks to its steerable outer main gear, the A380 is not much of a problem and will go wherever a 773 goes.
Btw, anybody heard of complains having had to widen TWY fillets just for the 773 years ago?

NimbusFlyer · Post by **NimbusFlyer** » 02 Aug 2007, 20:52

It does make you wonder how much brake wear increase the A380 will have without all 4 thrust reversing.

The A380 only has reverse on the inner engines, so no change in brake wear.

Atlantis · Post by **Atlantis** » 02 Aug 2007, 21:22

does somebody has info about the runways of Brussels Airport? I know how long they are, but I want to know how wide they are.
Not that I expect the A380 on our airport, just for info.

Thanks

an-148 · Post by **an-148** » 02 Aug 2007, 22:41

in LGG the rwy is 148' width (45,11 m) + schoulders and LGG is A380 compliant, so I guess that BRU rwy 25/07 (L and R) are also 148' + schoulders, and they should also be A380 compliant ! (the rwy 02/20 seems to have more width, but is shorter, so, in normal circumstances, only both 25/07 will be considered for A380

Homo Aeroportus · Post by **Homo Aeroportus** » 02 Aug 2007, 23:06

Atlantis wrote:does somebody has info about the runways of Brussels Airport? I know how long they are, but I want to know how wide they are.
Not that I expect the A380 on our airport, just for info.

Thanks

07L-25R is 3638m x 45
07R-25L is 3211m x 45
02-20 is 2987m x 50

So even 02-20 is OK for T/O up to max T/O weight ! (ISA conditions).

Atlantis · Post by **Atlantis** » 03 Aug 2007, 12:19

Thanks, Homo Aeroportus

Homo Aeroportus · Post by **Homo Aeroportus** » 03 Aug 2007, 13:13

Atlantis wrote:Thanks, Homo Aeroportus

My pleasure Atlantis.

Homo Aeroportus · Post by **Homo Aeroportus** » 09 Aug 2007, 08:34

A380 confirmed OK on 45-meter wide RWYs.

http://www.airbus.com/en/presscentre/pr ... nways.html

So anytime you want BigBoy, BRU is ready.

an-148 · Post by **an-148** » 09 Aug 2007, 11:53

an-148 wrote:in LGG the rwy is 148' width (45,11 m) + schoulders and LGG is A380 compliant

I found out for the shoulders: they are 2x10m so rway + shoulders= 65m.

David747 · Post by **David747** » 09 Aug 2007, 14:57

LAX should be able to handle the A380..

Homo Aeroportus · Post by **Homo Aeroportus** » 09 Aug 2007, 17:47

David747 wrote:LAX should be able to handle the A380..

And it'd better be considering the number of airlines in search for a stretch of concrete after crossing the Pacific.

In fact the A380 already landed at LAX in March 2007 when her sistership landed almosr simultaneously at JFK.
Thinkk it was March 19.