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Why Not Use New Runway At ORD?  
User currently offlineAcey From Canada, joined Jun 2007, 1051 posts, RR: 0
Posted (5 years 1 day 12 hours ago) and read 2888 times:

With the bad weather backing things up yesterday, why not use the new northern parallel since they can do simul approaches with 9R/27L? Isn't that what they built it for?


If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.
9 replies: All unread, jump to last
 
User currently offlineBri2k1 From United States of America, joined Dec 2004, 988 posts, RR: 4
Reply 1, posted (5 years 1 day 10 hours ago) and read 2830 times:

One concern at any airport, but especially ORD, is having enough equipment to keep multiple runways clear. I've been at ORD many times during heavy snow when there just isn't enough equipment to keep more than one runway each for departures and arrivals clear enough of snow to be usable. I have no idea if this is what you observed, but it's a possibility I suppose.


Position and hold
User currently offlineP3Orion From United States of America, joined May 2006, 544 posts, RR: 2
Reply 2, posted (5 years 1 day 1 hour ago) and read 2747 times:



Quoting Acey (Thread starter):
With the bad weather backing things up yesterday, why not use the new northern parallel since they can do simul approaches with 9R/27L? Isn't that what they built it for?

With the wind out of the east, we were down to two departure runways, 4L and 9R. We cannot land on 9L while departing on 4L in case of a go around...that would be ugly.



"Did he say strap in or strap on?"
User currently offlineMir From United States of America, joined Jan 2004, 21875 posts, RR: 55
Reply 3, posted (5 years 1 day ago) and read 2731 times:



Quoting P3Orion (Reply 2):
With the wind out of the east, we were down to two departure runways, 4L and 9R. We cannot land on 9L while departing on 4L in case of a go around...that would be ugly.

Are the arrival runways 10 and 4R in this configuration, or does the converging thing not work?

-Mir



7 billion, one nation, imagination...it's a beautiful day
User currently offlineAcey From Canada, joined Jun 2007, 1051 posts, RR: 0
Reply 4, posted (5 years 1 day ago) and read 2717 times:

On LiveATC I heard simul 10 and 4R arrivals all day long. To me it would make more sense to use 9L and 9R instead of 4L and 9R since they don't intersect... but they must have a reason for it. Snow removal perhaps, or maybe an additional tower/ground controller is needed.


If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.
User currently offlineP3Orion From United States of America, joined May 2006, 544 posts, RR: 2
Reply 5, posted (5 years 1 day ago) and read 2710 times:



Quoting Mir (Reply 3):
Are the arrival runways 10 and 4R in this configuration, or does the converging thing not work?

We were IFR, so Plan X is not an option. We were forced to be on the "9"s" (Lndg 9R, 10/Dept 4L,9R).

Quoting Acey (Reply 4):
but they must have a reason for it.

In order to be on plan X, the wx must be VFR.



"Did he say strap in or strap on?"
User currently offlineMir From United States of America, joined Jan 2004, 21875 posts, RR: 55
Reply 6, posted (5 years 1 day ago) and read 2708 times:



Quoting Acey (Reply 4):
To me it would make more sense to use 9L and 9R instead of 4L and 9R since they don't intersect... but they must have a reason for it.

It's a much shorter taxi to 4R than to 9L. And since the intersection of the two runways is so close to both thresholds, staggering the departures should be fairly easy.

-Mir



7 billion, one nation, imagination...it's a beautiful day
User currently onlineBMI727 From United States of America, joined Feb 2009, 15834 posts, RR: 27
Reply 7, posted (5 years 23 hours ago) and read 2698 times:



Quoting Mir (Reply 6):
It's a much shorter taxi to 4R than to 9L.

Which besides the issue of time, means that there are that many more taxiways to be kept clear.



Why do Aerospace Engineering students have to turn things in on time?
User currently offlineAcey From Canada, joined Jun 2007, 1051 posts, RR: 0
Reply 8, posted (5 years 23 hours ago) and read 2692 times:

Okay, so my question is... what is the wind/wx configuration where 9L is used?


If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.
User currently offlineMir From United States of America, joined Jan 2004, 21875 posts, RR: 55
Reply 9, posted (5 years 22 hours ago) and read 2672 times:



Quoting Acey (Reply 8):
Okay, so my question is... what is the wind/wx configuration where 9L is used?

I don't see it on any of the configurations on the OIS site. I suspect that 9L doesn't get used all that much, while 27R gets used quite a lot, since it does allow triple approaches with 27L and 28.

I'd also suspect that once ORD gets more parallel runways, you'll start to see 9L get used more.

-Mir



7 billion, one nation, imagination...it's a beautiful day
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