Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Heathrow Runways  
User currently offlineVS747 From United Kingdom, joined Nov 1999, 13 posts, RR: 0
Posted (13 years 10 months 1 day 20 hours ago) and read 1181 times:

Does anyone know why at London Heathrow (LHR) runway 09L is rarely (if ever?) used for take-offs? And likewise 09R rarely used for landings?
Just wondering...

Cheers,
Chris

3 replies: All unread, jump to last
 
User currently offlineIainhol From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 10 months 1 day 18 hours ago) and read 1149 times:

It is probably easier to get more take offs and landings if they use different runways. It also makes it easier as if a plane is slow taking off the plane landing behind it will not have to do a go around due to it. At LAX they use 25L for landing and 25R for take offs for the most part on the south side and on the north 24R is for landing and 24L for take off!
Iain


User currently offlineA student From , joined Dec 1969, posts, RR:
Reply 2, posted (13 years 10 months 1 day 7 hours ago) and read 1120 times:

Actually, all this is due to noise restrictions. The 09 runways are only used when the wind commands it, but the thing is that there are more settlements on one side than on the other, so it was agreed that if 09 runways are used, 09R will always be used for takeoffs.

For 27 departures, the current rotation system changes twice a day and once a week, I believe. (i.e. ay 1500 and some time in the evening, plus every monday the system changes, eg one week, 27L will be used for departures all mornings, next week it's used all afternoons)

By the way, it is estimated that Heathrow could actually increase its capacity by a few percent (1-3%, I believe) if they were allowed to use the runways for both purposes at the same time, and not use them in the rotation system that is in place now. That is caused by the fact that landings are more efficient than takeoffs, and therefore a bit of capacity is sacrificed. It's a shame about those noise restrictions and agreements with adjacent settlements, huh?


User currently offlineKaitak From Ireland, joined Aug 1999, 12400 posts, RR: 37
Reply 3, posted (13 years 10 months 1 day 7 hours ago) and read 1122 times:

Actually, this is something that came up as a thread on the PPRuNE site; there is an agreement with a village close to 09L, which prevents the use of this runway for departures. However, it is regularly used for landings.

09R is used for landings very early in the mornings; I was on a CX flight from HKG which used it. BA crews sometimes get to use it, for example when 09L is in use, it saves them the time and fuel involved in taxiing right around the aircraft and holding short of 09R to cross over to T4.


Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Heathrow Runways posted Sun Jul 6 2003 13:02:09 by Scbriml
Heathrow Runways posted Mon Sep 18 2000 00:30:51 by VS747
Direction Of Runways At Heathrow posted Wed Dec 1 2004 21:16:08 by Wingscrubber
Heathrow - Preferred Runways For Southerly Winds posted Wed Nov 20 2002 14:48:59 by JetTrader
Private Runways: FAA Regs? posted Fri Jun 12 2009 06:47:24 by MCIGuy
LAX- All North Runways Closed Mid-6am Tonight posted Sun May 24 2009 21:16:10 by HeyWhaTheHay
Air Transat At Heathrow? posted Sat May 23 2009 11:14:24 by Cambrian
British Airways Plans To Start Heathrow-Las Vegas posted Sun May 17 2009 02:34:27 by LIPZ
Heathrow PRT ... Testing! posted Thu May 14 2009 23:35:47 by TiktokJAKE
Departure Out Of Heathrow - Enlighten Me! posted Tue May 12 2009 03:23:58 by Britannia25