User avatar
1337Delta764
Topic Author
Posts: 5031
Joined: Mon Oct 31, 2005 4:02 am

DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Tue May 22, 2012 8:16 pm

From what I heard, the auxillary fuel tanks are optional on the 739ERs. Does anyone know if DL's 739ERs will have them? I would think they would be useful on transcon and Hawaii routes considering they are replacing 757s.
Yes, I wear Fairy Tale Pink IZOD shirts. I am a real man.
 
roseflyer
Posts: 9605
Joined: Fri Feb 13, 2004 9:34 am

DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Tue May 22, 2012 10:51 pm

I would not expect DL to have auxiliary tanks. They are not very common on any planes other than BBJs or 737-700ER/IGW. Continental did not have them and use them on the same routes that DL is expected to. The 737 is not typically fuel volume related. The auxiliary tanks add weight and would effectively reduce payload and range on the typical transcontinental mission. I believe DL would be more inclined to take a fuel stop rather than decrease passenger count/payload and use aux tanks.

That however is speculation.
If you have never designed an airplane part before, let the real designers do the work!
 
User avatar
DL_Mech
Posts: 2091
Joined: Fri Feb 18, 2000 7:48 am

DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Wed May 23, 2012 1:39 am

Also, maintenance on planes with the aux tanks is a major PITA. Access to air conditioning and avionics components is limited with the tanks installed. A simple task such as changing recirculation fan filters (a 20 minute job) turns into a 24 hour job. Airplanes like the C-40B (an extreme case) have the lower cargo capacity of a large cardboard box.
This plane is built to withstand anything... except a bad pilot.
 
User avatar
seabosdca
Posts: 5134
Joined: Sat Sep 01, 2007 8:33 am

DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Wed May 23, 2012 8:31 pm

The only mission where they could be valuable is Hawaii, but I don't think DL will operate these birds to Hawaii. For Hawaii I think DL will wait for the neo or MAX, flying 757s and 763As in the meantime.
 
User avatar
1337Delta764
Topic Author
Posts: 5031
Joined: Mon Oct 31, 2005 4:02 am

DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Thu May 24, 2012 1:06 am

Quoting seabosdca (Reply 3):
The only mission where they could be valuable is Hawaii, but I don't think DL will operate these birds to Hawaii. For Hawaii I think DL will wait for the neo or MAX, flying 757s and 763As in the meantime.

It has been confirmed that the 739ERs will be ETOPS from the factory, likely meaning Hawaii is one of the prime candidates to get 739ER service. Remember that the 75Vs are some of the oldest 757s in the entire Delta fleet.
Yes, I wear Fairy Tale Pink IZOD shirts. I am a real man.
 
FlyASAGuy2005
Posts: 3965
Joined: Sun Sep 23, 2007 4:55 am

DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Sat May 26, 2012 4:14 am

Quoting 1337Delta764 (Reply 4):

It has been confirmed that the 739ERs will be ETOPS from the factory, likely meaning Hawaii is one of the prime candidates to get 739ER service. Remember that the 75Vs are some of the oldest 757s in the entire Delta fleet.

That is true but I still don't see the business case for the 739ER with aux tanks. They'd be much more inclined to block a few seats in the back for their longest routes which is what they do already with the 738 during certain times of the year on JFK-PDX/SEA.

In DL's case (or most network carriers anyway), the issues isn't useful fuel load. Either way, by taking on more fuel their MTOW will increase considerably causing a weight penalty in the cabin and in the belly anyway. It's no secret that the 739 is a pig getting off the runway. The ER as it is is capable of doing transcons just fine for the most part but like I said that is remedied by capping Y.
What gets measured gets done.
 
deltal1011man
Posts: 4841
Joined: Mon Sep 19, 2005 9:17 am

RE: DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Tue May 29, 2012 12:00 am

Quoting FlyASAGuy2005 (Reply 5):

and I would bet that most of the 57s routes they will fly will be short hauls out of ATL/MSP and DTW. Younger 757s moved around to replace the 767/757 long hauls.
be a good little boy and do as Demand Media tells you. sellouts.
 
AA737-823
Posts: 4988
Joined: Wed Mar 01, 2000 11:10 am

RE: DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Mon Jun 04, 2012 9:22 am

Quoting DL_Mech (Reply 2):
A simple task such as changing recirculation fan filters (a 20 minute job) turns into a 24 hour job.

Are you serious!?!? They put an aux tank in front of the snake pit access? I had no idea- glad we don't have them! I assumed they'd just stack them in the forward part of the aft pit, which would be relatively harmless. But we're getting into the air mix chamber area (aka snake pit) fairly frequently to access those filters, and the cargo fire bottles for periodic checks....

Quoting seabosdca (Reply 3):
The only mission where they could be valuable is Hawaii

I disagree- nearly a dozen carriers have operated 737NG's to Hawaii for over a decade, and none of them have used aircraft with AUX tanks.

Quoting FlyASAGuy2005 (Reply 5):
The ER as it is is capable of doing transcons just fine for the most part but like I said that is remedied by capping Y.

With Delta, ContiNited, and soon AA removing a row of coach seats to do EconComfort, E+, and whatever AA calls it, this will be less of an issue.
 
Viscount724
Posts: 19304
Joined: Thu Oct 12, 2006 7:32 pm

RE: DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Tue Jun 05, 2012 2:14 am

Quoting AA737-823 (Reply 5):
Quoting seabosdca (Reply 3):
The only mission where they could be valuable is Hawaii

I disagree- nearly a dozen carriers have operated 737NG's to Hawaii for over a decade, and none of them have used aircraft with AUX tanks.

I can think of:

WestJet
Alaska
Continental
Aloha
Air Pacific

I'm obviously overlooking quite a few. Who are/were the others?
 
User avatar
1337Delta764
Topic Author
Posts: 5031
Joined: Mon Oct 31, 2005 4:02 am

RE: DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Tue Jun 05, 2012 11:54 am

Quoting Viscount724 (Reply 8):
I can think of:

WestJet
Alaska
Continental
Aloha
Air Pacific

I'm obviously overlooking quite a few. Who are/were the others?

ATA flew their 738s to Hawaii.
Yes, I wear Fairy Tale Pink IZOD shirts. I am a real man.
 
User avatar
seabosdca
Posts: 5134
Joined: Sat Sep 01, 2007 8:33 am

RE: DL 739ERs - Will They Have Auxiliary Fuel Tanks?

Wed Jun 06, 2012 4:58 am

Quoting AA737-823 (Reply 5):
I disagree- nearly a dozen carriers have operated 737NG's to Hawaii for over a decade, and none of them have used aircraft with AUX tanks.

This is not about 737NGs in general, but 739ERs in particular. Only CO has operated that type to Hawaii, and they've had range issues without the aux tanks.

73Gs and 738s certainly don't need the aux tanks for Hawaii.

Who is online

Users browsing this forum: seanpmassey, UltimateDelta and 2 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos