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A380 Runway Requiremnts  
User currently offlineptrjong From Netherlands, joined Mar 2005, 3997 posts, RR: 18
Posted (4 years 4 months 2 weeks 4 days 2 hours ago) and read 4947 times:

I understand that only two of the five main runways in AMSm 18R/36L and 09/27, are ready to take a loaded A380 (although the aicraft visiting AMS this Thursday will be empty and thus restrictions don't apply).

Wasn't the A380 supposed to have much the same runway requirements and footprint per wheel as a 747?

If it doesn't, wouldn't it be very inconvenient operationally for an airport like AMS to receive A380s on a daily basis?

This has probably been discussed before, but with the aircraft now in service a new thread probably doesn't hurt.

Peter 


The only difference between me and a madman is that I am not mad (Salvador Dali)
7 replies: All unread, jump to last
 
User currently offlinezeke From Hong Kong, joined Dec 2006, 9210 posts, RR: 76
Reply 1, posted (4 years 4 months 2 weeks 3 days 18 hours ago) and read 4860 times:

Quoting ptrjong (Thread starter):
I understand that only two of the five main runways in AMSm 18R/36L and 09/27, are ready to take a loaded A380 (although the aicraft visiting AMS this Thursday will be empty and thus restrictions don't apply).

Looking at the AMS runways

04/22 039FDWT

06/24 082RCXT
18C/36C 082RCXT
18L/36R 082RCXT

18R/36L 095FCWT
09/27 095FCWT


The numbers 39, 82, and 95 are the Pavement Classification Numbers (PCN)
F/R means flexible/rigid
C/D is the pavement sub category
W/X is the maximum tyre pressure means W - high, no limit, X - medium max 217 PSI
T means this has been determined by technical evaluation.

The runways basically have 2 classifications (I am ignoring 04/22 with such low strength is is really only good for turboprops)

082RCXT PCN of 82, rigid with a sub grade category "C" (Low) with max tyre pressure of 217 PSI
095FCWT PCN of 95, flexible with a sub grade category "C" (Low) with no max tyre pressure

The A380 tyre pressure is 200 PSI, so that is not a limit on any runway.

For rigid pavement with a sub grade category of "C", the ACN (aircraft classification number) at MTOW (262t) is 76
For flexible pavement with a sub grade category of "C", the ACN (aircraft classification number) at MTOW (262t) is 85

As the ACN is lower than the respective PCN for the various pavement types (76 82 & 105 > 95), the 77W is restricted on all runways.

Quoting ptrjong (Thread starter):
Wasn't the A380 supposed to have much the same runway requirements and footprint per wheel as a 747?

It does, in fact it uses less runway than the 744 for takeoff and landing, and has lower ACNs than the 77W, 77F, 748 346 etc.



We are addicted to our thoughts. We cannot change anything if we cannot change our thinking – Santosh Kalwar
User currently offlineptrjong From Netherlands, joined Mar 2005, 3997 posts, RR: 18
Reply 2, posted (4 years 4 months 2 weeks 3 days 15 hours ago) and read 4805 times:

Interesting. So what do you make of this restriction, which does seem to be in place? Is AMS being fussy?

By the way, 04/22 has been used for jet airliners during gales.



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently onlineStarlionblue From Greenland, joined Feb 2004, 17118 posts, RR: 66
Reply 3, posted (4 years 4 months 2 weeks 3 days 15 hours ago) and read 4799 times:

Could it be that the taxiway turns are too tight at some points?


"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineptrjong From Netherlands, joined Mar 2005, 3997 posts, RR: 18
Reply 4, posted (4 years 4 months 2 weeks 3 days 14 hours ago) and read 4787 times:

I found an answer, apparently it has to do with insufficient strength of the taxiway viaducts across the A4 highway. Apparently there are some problems with the aircraft's wingspan on the terminal side of the highway, so AMS wants it to park on the J platform on the west side of the highway. This means only runways 18C/36C, 18R/36L and 27 can be used.

So it seems AMS is not quite A380 ready.



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently onlineStarlionblue From Greenland, joined Feb 2004, 17118 posts, RR: 66
Reply 5, posted (4 years 4 months 2 weeks 3 days 14 hours ago) and read 4778 times:

Seems A380 ready enough for the traffic it gets. I mean it's not like it gets 20 380s a day right? There are probably plenty of airports who can't take anything bigger than a 321 or 739 in some areas. No point building infrastructure without a use case.


"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineptrjong From Netherlands, joined Mar 2005, 3997 posts, RR: 18
Reply 6, posted (4 years 4 months 2 weeks 3 days 14 hours ago) and read 4765 times:

I guess you're right. That's probably why they did make two gates A380 ready. Still, they're saying they don't really want the A380 in the terminal area, although it's there right now.


The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlinezeke From Hong Kong, joined Dec 2006, 9210 posts, RR: 76
Reply 7, posted (4 years 4 months 2 weeks 3 days 14 hours ago) and read 4765 times:

Quoting ptrjong (Reply 2):
Interesting. So what do you make of this restriction, which does seem to be in place? Is AMS being fussy?

The Netherlands AIP does not have the restriction you stated, it says

Quote:
7 AIRBUS A380 PROCEDURES

Schiphol Airport is on request AVBL as an alternate aerodrome for the Airbus A380. However, Schiphol Airport has limited facilities to accommodate the Airbus A380:

* Designated runways: RWY 18C/36C and RWY 18R/36L. RWY 27 AVBL for landing only.
* Designated parking positions: P10, P12, P14, P16 and J81.

from http://www.ais-netherlands.nl/aim/10...-100701/eAIP/html/index-en-GB.html

Quoting ptrjong (Reply 2):
By the way, 04/22 has been used for jet airliners during gales.

The listed runway PCN would not allow for a 737, you could use a F-28 or F-100.

Quoting Starlionblue (Reply 3):
Could it be that the taxiway turns are too tight at some points?

I think it has everything to do with ground movements, I suspect it is due to the bridge crossing the highway on A&B.

http://www.ais-netherlands.nl/aim/10.../html/graphics/eAIP/AM-GMC-A2s.pdf



We are addicted to our thoughts. We cannot change anything if we cannot change our thinking – Santosh Kalwar
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