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Are Mid-runway Take Offs Done In US?  
User currently offlineMalaysia From United States of America, joined Nov 1999, 3343 posts, RR: 0
Posted (9 years 5 months 6 days 4 hours ago) and read 7074 times:

I dont really know the term to use, but its when a plane just enters the middle of the runway, to do a rollout, not the threshold or begining section.

I have always started from the end of a runway in the US, except for one day when I was on AirAsia, they just simply went straight from the terminal and
went on a runoff taxiway and then just turned around in the middle of the runway and the plane took off in the middle of the runway. We just lifted off right when I could see the
end threshold lines.

what if there was a emergency? no extra length left. is this allowed in US
or Malaysia has an exception?

I think it was taxiway A8 or something, not sure, I dont remember, but was
exactly perpendicular to G gates at KUL.


There Are Those Who Believe That There May Yet Be Other Airlines Who Even Now Fight To Survive Beyond The Heavens
43 replies: All unread, showing first 25:
 
User currently offlineKcrwFlyer From United States of America, joined May 2004, 3811 posts, RR: 7
Reply 1, posted (9 years 5 months 6 days 4 hours ago) and read 7064 times:

yes, on commuter props its common.

User currently offlineJdwfloyd From United States of America, joined Feb 2005, 837 posts, RR: 4
Reply 2, posted (9 years 5 months 6 days 4 hours ago) and read 7051 times:

Intersection departures are very common in the States.

User currently offlineDesertJets From United States of America, joined Feb 2000, 7776 posts, RR: 16
Reply 3, posted (9 years 5 months 6 days 3 hours ago) and read 7006 times:

At ORD departures from T10 (I believe) on 32L are the norm for most aircraft, and seems to be the prefered ideal conditions setup. This gives you ~8500' of runway and minimizes any conflicts with arrivals on 27L.


Stop drop and roll will not save you in hell. --- seen on a church marque in rural Virginia
User currently offlineCharlib52 From United States of America, joined Apr 2004, 164 posts, RR: 18
Reply 4, posted (9 years 5 months 6 days 3 hours ago) and read 6999 times:

Whenever I fly from ORD-SEA I always seem to depart from intersection M on 32L. Of course 32L is 13,000 ft, so plenty of room, even for a maxed-out MD-80. Although one wonders some days....  Smile

Cheers!


User currently offlineCarpethead From Japan, joined Aug 2004, 2953 posts, RR: 3
Reply 5, posted (9 years 5 months 6 days 2 hours ago) and read 6872 times:

It's very common for short-haul flights to use intersection departures throughout the world.
We, here in the Japan, see 744D using only 2,500m of runway length for a domestic flight because it doesn't need 4,000m or so of runway and the extra taxi time can be cut-off.


User currently offlineFriendlySkies From United States of America, joined Aug 2004, 4105 posts, RR: 5
Reply 6, posted (9 years 5 months 6 days 2 hours ago) and read 6859 times:

Quoting DesertJets (Reply 3):
At ORD departures from T10 (I believe) on 32L are the norm for most aircraft, and seems to be the prefered ideal conditions setup. This gives you ~8500' of runway and minimizes any conflicts with arrivals on 27L.

It is T10, and they almost never use all of 32L for takeoffs. This way planes can land on 9R or 27L without interruption, as you said.


User currently offlineYYZ757FAN From Canada, joined Feb 2005, 93 posts, RR: 0
Reply 7, posted (9 years 5 months 6 days 1 hour ago) and read 6830 times:

Intersection departures are common at YYZ as well ,usually with turbo props the short haul or biz jets. Ground controller will offer the intersection departure and give the runway length available . Its always up to the pilots discretion so guess who gets the blame if a problem develops.

User currently offlineWedgetail737 From United States of America, joined Aug 2003, 5901 posts, RR: 6
Reply 8, posted (9 years 5 months 6 days 1 hour ago) and read 6770 times:
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Southwest uses one of the high-speed taxiways to get onto the runway at OAK for take-off.

User currently offlineCancidas From Poland, joined Jul 2003, 4112 posts, RR: 11
Reply 9, posted (9 years 5 months 5 days 23 hours ago) and read 6690 times:

intersection departues are the norm at JFK for example. i forget which runways it happens on. everything depends on the weight of the airplane and the available runway length.


"...cannot the kingdom of salvation take me home."
User currently offlineANCFlyer From , joined Dec 1969, posts, RR:
Reply 10, posted (9 years 5 months 5 days 23 hours ago) and read 6667 times:

Quoting DesertJets (Reply 3):
At ORD departures from T10 (I believe) on 32L are the norm for most aircraft,

I was gonna say that . . .

And at ANC, departures on 6L are routinely done mid-runway with Otters, Metroliners and Saabs . . .


User currently offlineIsitsafenow From United States of America, joined Feb 2004, 4984 posts, RR: 23
Reply 11, posted (9 years 5 months 5 days 23 hours ago) and read 6657 times:

Full length going off 32L at ORD is usually saved for the Orient trips. Those seven-fours need a big running jump. Its always a buzz to watch them sllooooowly take to the air.
32L is around 13000 ft but at the T10, I am guessing 8500ft or there-about.
safe



If two people agree on EVERYTHING, then one isn't necessary.
User currently offlineB777fan From United States of America, joined Oct 2004, 171 posts, RR: 2
Reply 12, posted (9 years 5 months 5 days 20 hours ago) and read 6361 times:

At ORD, plenty of 744's start from T10 on 32L as well, not just the small stuff.

Gotta keep that traffic movin inbound to 9R.


User currently offlineApollo13 From , joined Dec 1969, posts, RR:
Reply 13, posted (9 years 5 months 5 days 20 hours ago) and read 6325 times:

Yeah i remember one time at Oakland, our southwest flight to BUR was almost empty and we taxied to the middle and were on our way.

User currently offlineANITIX87 From United States of America, joined Mar 2005, 3303 posts, RR: 13
Reply 14, posted (9 years 5 months 5 days 20 hours ago) and read 6175 times:
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A little bit off topic, but relating to Wedgetail737's post...what are the speeds for taxi-ways. It's something I've always wondered. And do they vary from airport to airport and based on the size of the taxiway? Thanks.

Tis



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User currently offlineJacobin777 From United States of America, joined Sep 2004, 14968 posts, RR: 60
Reply 15, posted (9 years 5 months 5 days 20 hours ago) and read 6152 times:

Quoting Carpethead (Reply 5):
We, here in the Japan, see 744D using only 2,500m of runway length for a domestic flight because it doesn't need 4,000m or so of runway and the extra taxi time can be cut-off.

Interestingly enough..... @ SFO, I have seen JL take off MANY times from midway of the 28's and 10's....basically just north (i.e. " to the "right" of 1R if one is going towards the 28's). I might even have some video recordings of it. I'm trying to find a a cheap web-hosting service (I don't want to put all my videos on Flightlevel 350).


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Photo © Bjorn Alegren



the 28's are in the foreground



"Up the Irons!"
User currently offlineConcordeBoy From , joined Dec 1969, posts, RR:
Reply 16, posted (9 years 5 months 5 days 20 hours ago) and read 6117 times:

Slightly off topic... but there's an old pilots' saying that nothing is more useless than the runway (length that's) behind you  Wink

User currently offlineCkfred From United States of America, joined Apr 2001, 5220 posts, RR: 1
Reply 17, posted (9 years 5 months 5 days 19 hours ago) and read 6013 times:

The only time I've seen a departure from the end of 32L was a BA 777. There wasn't much wind that evening, and I'm guessing he was near MTOW.

I've done a mid-runway departure at YYZ on an AA F100. From my view, it appeared that the captain, not wanting to follow 3 or 4 other aircraft to the end of the runway, simply asked the tower for clearance for a mid-point departure and then did a quick taxi and take-off roll.


User currently offlineCactusA319 From United States of America, joined Jan 2000, 2918 posts, RR: 25
Reply 18, posted (9 years 5 months 5 days 19 hours ago) and read 5974 times:

Quoting Isitsafenow (Reply 11):
Full length going off 32L at ORD is usually saved for the Orient trips. Those seven-fours need a big running jump. Its always a buzz to watch them sllooooowly take to the air.
32L is around 13000 ft but at the T10, I am guessing 8500ft or there-about.

Pretty close, it's actually 8,800. Full length is saved for the heavy departures to Asia (744's and 777's) and occasionally a heavy bound for Europe (altough these typically depart from 32R). Using full length during the day sucks though, since the aircraft will have to sit and wait for several moments until there is a big enough gap in arrivals for him to launch.

At night, the full length of 32L is used on all departures for noise abatement purposes. The higher the planes are when they reach the residential areas northwest of the airport, the less complaints there are.


User currently offlineCkfred From United States of America, joined Apr 2001, 5220 posts, RR: 1
Reply 19, posted (9 years 5 months 5 days 19 hours ago) and read 5961 times:

CactusA319:

What time does noise abatement procedures start for 32L departures? I've been on 10pm flights that departed 32L at T-10.


User currently offlineN1120A From United States of America, joined Dec 2003, 26442 posts, RR: 75
Reply 20, posted (9 years 5 months 5 days 19 hours ago) and read 5872 times:

Quoting Carpethead (Reply 5):
We, here in the Japan, see 744D using only 2,500m of runway length for a domestic flight because it doesn't need 4,000m or so of runway and the extra taxi time can be cut-off.

I have seen UA 744s take off from LAX going to DEN that take off shorter than WN 737s going to PHX (maybe using 1500-1800m of 24L)

I actually did 2 intersection takeoffs on this last trip. On ORD-LAX I took off from 32L T10 and LAX-DEN took off from 25R Foxtrot, both 757s (naturally).



Mangeons les French fries, mais surtout pratiquons avec fierte le French kiss
User currently offlineORD2PHL From United States of America, joined Oct 2003, 313 posts, RR: 0
Reply 21, posted (9 years 5 months 5 days 19 hours ago) and read 5795 times:

At night, the full length of 32L is used on all departures for noise abatement purposes. The higher the planes are when they reach the residential areas northwest of the airport, the less complaints there are.

Indeed, from someone that grew up in a NW suburb that borders ORD, it was every summer night that I found myself staring up from the baseball field at the heavy departures in the evening bound for the North Atlantic, what a great place to grow up!


ORD2PHL


User currently offlineHa763 From United States of America, joined Jan 2003, 3655 posts, RR: 5
Reply 22, posted (9 years 5 months 5 days 19 hours ago) and read 5753 times:
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It is the norm for WP to do an intersection takeoff here at HNL from 8L. They usually enter the runway at taxiway L. Also this also allows them to cut in front of HA and AQ and takeoff first since HA and AQ taxi all the way down to the end of the runway.

However, during Kona winds ops, HA, AQ, and WP all do intersection takeoffs from either taxiway E or H on 26R. This allows for nearly simultaneous takeoffs from 26R and 22L/R.


User currently offlineUAFAN17 From United States of America, joined Mar 2004, 120 posts, RR: 0
Reply 23, posted (9 years 5 months 5 days 18 hours ago) and read 5715 times:

ORD2PHL


As I sit here writing this I hear the Intl inbounds descending into O'hare over my house. during the day in the summer when I'm relaxing at the pool I can easily spot about 10-20 Europe bound flights leave ORD each day.


Happy Easter and/or Purim to all who celabrate it!


User currently offlineContinental From United States of America, joined Jun 2000, 5516 posts, RR: 18
Reply 24, posted (9 years 5 months 5 days 18 hours ago) and read 5575 times:

I see it from time to time at MSP with the Mesaba aircraft. I also took of at an intersection two years ago at ORD.

25 Lincoln : It appears I am mistaken, but I thought LAX prohibited intersection departures after an incident involving a USAir (727 or 737) landing behind and ru
26 Zeekiel : A little bit off topic. You have got to love intersection departures. The best is whenever I fly on a QF 763 to Auckland on the intersection departure
27 UA772IAD : Alot of inner island traffic between the islands typically do that, especially out in HKO (Kona)
28 Morvious : A little off topic On Schiphol they use S3 and S4 sometimes for rwy 24. Most of the time for the F50's. It does save some taxi time for them, and they
29 Chicoco : Malaysia,as Zeekiel says,at YSSY RW06R is often used in this manner, you see anything from 717,737,A320,763,743,744,using "intersection take offs"to M
30 Post contains images AirPortugal310 : Saw two (2) Commutair B-1900's do it at BOS yesterday off of 4R
31 CosmicCruiser : Bottom line is, Yes intersection t/os are allowed even with bigger planes. Regardless, the performance data must show that you will have at least a "
32 C133 : Not positive, but I think the FAA prohibited night intersection departures when the full length is being used for landings. (Accident conditions.) An
33 Daron4000 : At ORD, the heavies use both T10 and the full length of 32 L. For example, last week, I flew from ORD to DEN on a 757, and we were waiting to go onto
34 Lear35pilot : I just did a mid-runway departure on Friday from ORD. Granted, I was on a small plane (Lear 60), but we started our roll a good 3000+ feet down runway
35 Bluejackets : I just did my first intersection takeoff at CMH last Thursday on a CO Express Jet to CLE. This was the first time I took off/witnessed any commercial
36 Post contains images UAMAYBACH1239 : I have always started from the end of a runway in the US, except for one day when I was on AirAsia, they just simply went straight from the terminal a
37 Airplane : For departures on JFK runway 31L I have always departed from intersection K on a DC-10 and A-310. JP
38 A999 : Why bother using the runway? The following story occured many years ago at Bergen Flesland airport (BGO) in western Norway. DeHavilland of Canada was
39 PSU.DTW.SCE : We used the full 32L at ORD on an AA MD-80 once. Granted we were flying to SFO, fully loaded, in mid-July when it was 95 degrees.
40 Starlionblue : If the runway length in front of the nose is enough to fulfil requirements, emergencies aren't more of a problem than if you use an extra few 1000'.
41 Timz : "@ SFO, I have seen JL take off MANY times from midway of the 28's and 10's....basically just north (i.e. " to the "right" of 1R if one is going towar
42 Iowa744fan : It all depends upon how heavy the aircraft is. For the shorter flights from ORD to say DEN or SFO, the 744s and 772s that UA uses or has used over th
43 PoRtColuMBus : You had to because 1800' of 28L is closed.
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