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yyzmdw
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LGA-DEN 739 Ops

Wed Jul 21, 2021 6:10 pm

Noticed that Delta has scheduled the B739 on LGA-DEN over the past while...UA has it in the schedule as well, and has historically. I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?
 
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BWIAirport
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Re: LGA-DEN 739 Ops

Wed Jul 21, 2021 6:29 pm

Do UA's 739s have the ability to bump the takeoff thrust (as opposed to derate)? I would think flaps 15 and a TO Bump would do the job
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Weatherwatcher1
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Re: LGA-DEN 739 Ops

Wed Jul 21, 2021 8:08 pm

Delta has used the 737-900ER out of LGA to Florida for a while, which is 1000 miles. Thanks for sharing that they are using it to DEN, which is 600 miles further.

I doubt loads are light.
 
Scarebus34
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Re: LGA-DEN 739 Ops

Wed Jul 21, 2021 8:14 pm

yyzmdw wrote:
Noticed that Delta has scheduled the B739 on LGA-DEN over the past while...UA has it in the schedule as well, and has historically. I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?

I do not believe UA schedules the 739 into LGA...
 
ScottB
Posts: 7417
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Re: LGA-DEN 739 Ops

Wed Jul 21, 2021 8:46 pm

yyzmdw wrote:
I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?


I can't see any reason why DL would schedule the 739ER from LGA to DEN if it weren't capable of performing the route without payload limitations (apart from unusual weather circumstances). Pretty much any narrowbody in the fleet (including the 738/757/A321) could do it, so there's no reason to misuse a 739ER unless they need to do it for aircraft flow.
 
N649DL
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Re: LGA-DEN 739 Ops

Wed Jul 21, 2021 9:02 pm

I used to live in DEN and flew back a lot to visit family in the NYC-Area. It was almost always on DL and DEN-LGA was always on an A320 and DEN-JFK was mostly 738. So I'm surprised they're using the 739ER on DEN-LGA with it's short runways. I'm sure they take some weight restrictions on certain days.

It's worth noting flying DEN-SLC-EWR on DL that SLC-EWR was usually on a 739ER but both airports have longer runways. However those takeoff rolls out of SLC on the 739ER were real long (likely due to the heat and altitude but I have no idea). I think I timed it one time and it was 50-60 seconds for it to rotate out of there.
 
ContinentalEWR
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 12:48 am

Scarebus34 wrote:
yyzmdw wrote:
Noticed that Delta has scheduled the B739 on LGA-DEN over the past while...UA has it in the schedule as well, and has historically. I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?

I do not believe UA schedules the 739 into LGA...


I am not sure UA haven't in the past scheduled 737-900s into LGA, but I don't believe they are used on LGA-DEN which is mostly A32 and 738, in fact currently LGA-DEN on UA is all A320 and A319.
 
JFKalumni
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 2:19 am

ContinentalEWR wrote:
Scarebus34 wrote:
yyzmdw wrote:
Noticed that Delta has scheduled the B739 on LGA-DEN over the past while...UA has it in the schedule as well, and has historically. I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?

I do not believe UA schedules the 739 into LGA...


I am not sure UA haven't in the past scheduled 737-900s into LGA, but I don't believe they are used on LGA-DEN which is mostly A32 and 738, in fact currently LGA-DEN on UA is all A320 and A319.


Years ago, UA would send 737-900’s into LGA but it was mostly to ORD. The 900 would usually be a last minute upgrade for ORD. DEN had 737-800’s, A319’s and 20’s. The 9:00am departure was a 757-300 during skiing season. I can’t remember a 900 to DEN.
 
Weatherwatcher1
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 3:23 am

JFKalumni wrote:
ContinentalEWR wrote:
Scarebus34 wrote:
I do not believe UA schedules the 739 into LGA...


I am not sure UA haven't in the past scheduled 737-900s into LGA, but I don't believe they are used on LGA-DEN which is mostly A32 and 738, in fact currently LGA-DEN on UA is all A320 and A319.


Years ago, UA would send 737-900’s into LGA but it was mostly to ORD. The 900 would usually be a last minute upgrade for ORD. DEN had 737-800’s, A319’s and 20’s. The 9:00am departure was a 757-300 during skiing season. I can’t remember a 900 to DEN.


There are some YouTube trip reports of United 737-900ERs flying DEN-LGA from 2018-2020.
 
graceintheair
Posts: 26
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 3:23 am

Maybe the 739's performance isn't as bad as folklore suggests.
 
crownvic
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 4:08 am

LGA - Sea level airport works wonders on aircraft performance!
 
slcdeltarumd11
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 6:32 am

graceintheair wrote:
Maybe the 739's performance isn't as bad as folklore suggests.


The 739 is definitely a runway eater. LGA is neither high nor hot so that helps so much in this situation. The last time it was 100 degrees was 2012 in nyc.

Denver has super long runways so the high and hot is fine.
 
oldannyboy
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Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 9:04 am

yyzmdw wrote:
. I was under the impression (from a.net) .......


Exactly. That is the problem.

You have no idea the utter nonsensical crap you'd be lead to believe by reading some of the stuff that gets written by some people over here....
Take absolutely everything with a ton of salt.
 
MIflyer12
Posts: 9620
Joined: Mon Feb 18, 2013 11:58 pm

Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 11:46 am

ScottB wrote:
yyzmdw wrote:
I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?


I can't see any reason why DL would schedule the 739ER from LGA to DEN if it weren't capable of performing the route without payload limitations (apart from unusual weather circumstances). Pretty much any narrowbody in the fleet (including the 738/757/A321) could do it, so there's no reason to misuse a 739ER unless they need to do it for aircraft flow.


I follow your reasoning. (Other than aircraft positioning) I don't know why they just wouldn't throw a 757 at it and eliminate any doubt.
 
jayunited
Posts: 3501
Joined: Sat Jan 05, 2013 12:03 am

Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 12:07 pm

In the past the reasoning behind UA limiting 739 operations out of LGA was do to the LGA pier limit.

I’m no expert on this issue but I think because the 757 and 767 have 4 tires on the main gear those aircraft can spread out the pavement loading whereas the 739 which if fully loaded with 179 passengers and 38,000 LBS of fuel only has 2 tires per main gear to spread the load.

I think LGA a few year back strengthen the pier raising the pier limit and prior to COVID United had resumed 739ER flights on some of our DEN-LGA-DEN flights. Right now we are not operating 739ERs on this route but who knows they could make a comeback at some point in the future.
 
slcdeltarumd11
Posts: 5160
Joined: Fri Jan 09, 2004 7:30 am

Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 12:27 pm

oldannyboy wrote:
yyzmdw wrote:
. I was under the impression (from a.net) .......


Exactly. That is the problem.

You have no idea the utter nonsensical crap you'd be lead to believe by reading some of the stuff that gets written by some people over here....
Take absolutely everything with a ton of salt.


The 739 is a runway eater in hot or high and full fuel. NYC hasn't been 100 since 2012 so it's not really an airport that we would expect major issues. It's not high or hot that's all. Airports with long runways like DEN are fine for the 739 even if hot. A net likes to make huge generalizations but yeah on that route not an issue lga isn't super hot and den has super long runways
 
FriscoHeavy
Posts: 1841
Joined: Tue May 27, 2014 4:31 pm

Re: LGA-DEN 739 Ops

Thu Jul 22, 2021 5:16 pm

yyzmdw wrote:
Noticed that Delta has scheduled the B739 on LGA-DEN over the past while...UA has it in the schedule as well, and has historically. I was under the impression (from a.net) that the 739 is too field performance-limited to be able to do a 4 hour flight from the 7000 foot runways at LGA. Is this just possible due to light loads/summer winds? Or is this within the full payload capability of the 739?



As others have mentioned, LGA is at sea level and rarely very hot. Taking off from sea level AND not having terrain obstacles helps out tremendously. In addition, it would not likely be at MTOW, even going westbound, given the distance.
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