Delta Virtual Airlines Water Cooler

Delta Virtual Airlines Water Cooler | Airline Operations | Excessive Weight?

DVA9677
Captain, B737-800
OLP

Joined on April 11 2011
50 State Club
Online Double Century Club
Quincentenary Club

"American 1482, your APU is leaking baggage."
Kissimmee, FL USA

543 legs, 735.9 hours
247 legs, 299.2 hours online
538 legs, 725.6 hours ACARS
2 legs, 2.8 hours event

Posted onPost created on July 24 2011 09:49 ET by John Anderson

I just flew from DTW to PHL in my wonderful iFly 738, and got an Excessive Weight Flag.

Checking my numbers IAW the Limitations section of the iFly Manual, with my AC loaded to an Initial Gross Weight of 140,194lbs, that puts me close to 4000lbs UNDER Max Landing Weight of 144,000lbs.

I used the iFly's configuration Manager to load the aircraft, and double checked the load in the Aircraft Menu of FSX.

ACARS shows me at 155,619lbs at takeoff (119lbs over Max Takeoff, and not a true number), and 146,383lbs at landing, and 83lbs overweight. Again IAW iFly Manual, that number should have been 2,383lbs overweight if that were a true number.

I've seen the overweight message once before, but that was because I'd told ACARS I was flying the 73G and I actually flew the 738. Until now, I've not really paid much attention to the ACARS numbers (except the landing rate wink

).

Bottom line is that the ACARS numbers are not matching mine, nor the limitations.

What am I doing wrong? Is there a fix for this that I've missed?

Thanks.

John Anderson (DVA9677)

DVA3931
Senior Captain, L-1011-100
OLP, COMM

Joined on January 19 2007
50 State Club
Tri-Jet Triumph
Million Mile Club
Online Quadruple Century Club
Flying Colonel
Globetrotter
Burbank 500 Club
Eurocap Club
DVA Fifteen-Year Anniversary

"De oppresso liber"
Surry, ME

1,882 legs, 3,806.7 hours
478 legs, 767.8 hours online
1,107 legs, 1,674.5 hours ACARS
55 legs, 114.8 hours event
195 legs dispatched, 134.4 hours

Posted onPost created on July 24 2011 09:56 ET by Andrew Kaufmann

Numbers in ACARS are based on fleet aircraft. You can update the loading for the ifly through the ACARS system. I'm sure someone already has an iFly fuel set already for ACARS. Would recommend moving this over to the 737 thread.

Andrew Kaufmann (DVA3931)

DVA5270
Senior Captain, B737-800

Joined on September 27 2007
50 State Club
Everett 500 Club
Online Quintuple Century Club
Nine Century Club
DVA Ten-Year Anniversary

"p=np"
Charleston, SC USA

977 legs, 1,725.8 hours
578 legs, 894.1 hours online
931 legs, 1,647.1 hours ACARS
43 legs, 67.0 hours event

Posted onPost created on July 24 2011 10:33 ET by Don Thomas

Which weight do we use.

Wilkipedia lists it as 144,500–187,700
PMDG lists it as 173,000
Boeing lists it as 174,200 lb (79,010 kg)
Simvation lists it as 155,500 (70,530) to 174,200 (79,010)

There are alot of different numbers out there

Don Thomas

Senior Captain, B737-800

DVA7577
First Officer, B777-200
OLP

Joined on July 18 2009
50 State Club
Triple Century Club
Everett 250 Club
DVA Fifteen-Year Anniversary

Buffalo, NY USA

334 legs, 637.3 hours
29 legs, 47.8 hours online
332 legs, 629.7 hours ACARS
5 legs, 9.4 hours event

Posted onPost created on July 24 2011 10:36 ET by Jesse Kovacs

Well, looking at it, I'd say your fuel planning is a bit off. You most certainly do not need 10000 lbs of fuel on landing. Normal reserves are around 4400.

Jesse Kovacs

First Officer, B777-200

Posted onPost created on July 24 2011 10:45 ET by Jesse Kovacs

According to Boeing's numbers the winglet models have a max landing weight of 146,300 lbs - and that seems to be what we use. The two other variants are lower:

http://www.boeing.com/commercial/airports/acaps/737sec2.pdf page 13 is the -800.

Jesse Kovacs

First Officer, B777-200

Posted onPost created on July 24 2011 10:50 ET by Don Thomas

Jesse like s 4400, I lean more toward 5-6000 lbs. At 73% EPR at 10,000/250 that gives me about an hour and a half, 45 minutes of holding, enough to divert, and a missed approach or two.

That's just me.

Don Thomas

Senior Captain, B737-800

Posted onPost created on July 24 2011 11:04 ET by Don Thomas

John looking back over your logbook. I would not sweat the 83 lbs, think you are a pretty solid simmer.

Don Thomas

Senior Captain, B737-800

Posted onPost created on July 24 2011 11:50 ET by John Anderson

Thanks, Don.

John Anderson (DVA9677)

Posted onPost created on July 24 2011 12:05 ET by Jesse Kovacs

Don Thomas wrote:

Jesse like s 4400, I lean more toward 5-6000 lbs. At 73% EPR at 10,000/250 that gives me about an hour and a half, 45 minutes of holding, enough to divert, and a missed approach or two.

That's just me.

Yeah, that's how I usually end up, between 5 and 6k - that's why I only plan for 4, lol. wink

Jesse Kovacs

First Officer, B777-200

Posted onPost created on July 24 2011 12:22 ET by John Anderson

Jesse Kovacs wrote:

Well, looking at it, I'd say your fuel planning is a bit off. You most certainly do not need 10000 lbs of fuel on landing. Normal reserves are around 4400.

I will often ferry, if I think the numbers will let me get two 20 min flights from one tank. No, not the best practice, but smaller airports that only have small Jet-A tanks will often charge more. wink

Posted onPost created on July 24 2011 13:27 ET by Jesse Kovacs

Gotcha.

Jesse Kovacs

First Officer, B777-200

For flight simulation purposes only. Not a commercial website. In no way are we affiliated with Delta Air Lines, its affiliates, or any other airline. All logos, images, and trademarks remain the property of their respective owners. Delta Virtual Airlines is a non-profit entity engaged in providing an avenue for flight simulation enthusiasts.