Hello I have a big problem, when i am put de pmdg and try to use the fmc alway appear insufficient fuel in any route, i try Mexico-Acapulco, Los Angeles San Francisco and alway have the same problem anybody can tell about this problem, i try te remove tool and reistall the program but alway happend the same thing, thank your for your help

Hi AMX,The PMDG forum rules are that you sign your post with your real name. On to your problem.First do you have all the updates? SU1-1 is the latest, as we all wait for SU2. I can get the insufficient fuel notice is the FMC calculates a fuel at landing below 2-3K pounds. Are you using a fuel planner? Rule of thumb, the 737NG uses between 5.0-5.8K pounds of fuel per hour at altitude. If you then add, taxi, alternate, holding and extra to the trip total, you should not get the insufficient fuel warning. Here is an example of my fuel load on a flight from KDEN to KSFO yesterday, using FSBuild V2 as the planner.ZFW=120320, Payload=37,320 (124pax and 3/4full cargo), TakeOff Weight of 141,490 pounds. Cruse Altitude of 35,000 feet, Winds 350/45 (wind factor of +10) distance 853 miles.Pounds of Fuel Loading:Taxi=00500 (20 minutes) additional point, APU burns about 225lbs/hrTrip=10306 (2 hours)Resv=03602 (45 minutes)Altn=01260 (15 minutes) on this flight that is KOAK 10 miles awayHold=02401 (30 minutes)Extr=03602 (45 minutes)Totl=21670 (4 hours and 35 minutes of fuel)As you can see from the load, if I had only used 2 hours of fuel, for the time of flight, I would have had insufficient load for this flight.Hope this sheds some light on your problem. SU2 I think will calculate the fuel consumption better than what is being done now.CheersBob Johnson

I was getting the same thing even with the right amount of fuel and then I remembered I read somewhere that when fuel gets to or below 1000 ibs to check croos feed switch at the top of the fuel pump panel. So I swithched it on and now I don't get the remark on fmc. I don't know if that helps but it did the trick for me.David

I may be wrong here but I am sure that the fuel light should only come on when total fuel available drops below the reserve fuel setting in the FMC? If it automatically comes on at a certain stage, what would be the use of this FMC setting? I am going to review the manual a bit more.I understand also that in real life it is very common for this to come on espcially in climb mode.

Mike, that is a good question. I can't find it in my mnaual, Ian in your maintenance manual, does it state anything about the FMC insufficient fuel warning being activated by a fuel at destination below what is set in the reserve field on the FMC?Bob Johnson

"Ian in your maintenance manual, does it state anything about the FMC insufficient fuel warning being activated by a fuel at destination below what is set in the reserve field on the FMC?"Interestingly, Bob, both the Boeing Maintenance Manual and the Bulfer manual have no reference to the reserve field with respect to this message (unlike the 767 and 747-400). They only mention less than 2000lbs (at destination).I was wondering why modifying my reserve value had no effect on the message in PMDG :-)Thanks for asking!Cheers.Ian.

Thank you Bob, my real name is Ever Rosas, sorry if not put my real name, this is my first time in any forum and now have more question, you askme if i use any fuel planner, and my answer is no i never use it, and now, you can tell about fsbuild v2 it

Ever, This was a issue with the older versions (a message nusance only) that has been delt with. SU2 (upcoming patch) will be around shortly so think of that message as a temporary evil ;)...PS- There are indeed many cases where the user has not preformed correct fuel loading etc but in general this was a issue in the FMC itself. [h4]Best Wishes,Randy J. Smithhttp://img.villagephotos.com/p/2003-5/196432/winglets_lg.jpg

Hi Ever,Hope I did not cause you any grief with the name thingie, but that is a PMDG forum as is the case with most of the forume on AVSIM :-)Now on to the fuel planning issue; To really make flying in MSFS or any simulator, one should plan as a real pilot would. In the case of the 737, the airline dispatch would take care of this. However it is always the crew's final responsiblity to calculate their fuel. With the PIC767 their is an excellent planner called 767 Dispatch. With the PSS 777 and 747 they have several tools to do the same done by Rob van Lest (or something close to that spelling). As of "right now", FSBuild V2 is just about the best fuel planner available for this great bird. Ernie Alston and I spent a lot of time during the AVSIM conference going over the fine points of the fuel planning aspects of his program.Being an "old" USAF KC135 crew member, fuel planning is just a natural part of my flying. No pilot would ever go aloft without a fuel plan. Planning the route and the fuel is just part of my everyday simming experience, and I HIGHLY recommend that anyone flying the PMDG 737 make this a part of their preflight. Using the "rule of thumb" method is just not good enough. You would never pass a flight check with this "seat of the pants" method.Now with all that said, spend a "dime" and get FSBuild and become proficient at using flight planning and fuel planning. You will enjoy flying so much more and you will "never" run out of fuel.Ever, welcome to the wonderful world of PMDG and this really outstanding piece of software and the "real" virtual world of flying. This is what is means to be "as real as it gets". Enjoy and if you have questions don't ever hesitate to ask them here on this forum. There are some really great folks on this forum and they will all do what ever to help you out on ANY question.Enjoy the thrillBob Johnson

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Oh yeah, don

Ian,The INSUFFICIENT FUEL message is triggered by the fuel computed at dest falling under 900 kgs, as you mention in your post.cheersanthonyAnthony MertonPrecision Manuals Developmenthttp://www.precisionmanuals.com

Make sense then why the message would be triggered in climb. The burn rate would be so high the fuel prediction would have to be discarded at least until reaching TOC.Regards.Ernie.

Ernie,>>

I keep getting the same message and I am doing short flights with full tanks.I went to checking the fmc pages and a few weeks ago found this problem.I am using FSBuild 2.0 and flew from KATL to KJAX and had a full load of fuel,I went into the route page and set up my route KATLKJAX.rte and than went into the PREF INIT page and set up everything and when I went into the progrss page found that it had a mileage of 5677 miles listed.No wonder it said insufficient fuel,I went into the arrdep page and setup a runway 7 arrival at jax and entered kjax into the legs page as it was not there and my mileage went down to 258 and the message never came back.I don't know if this is a FSBuild problem or a fmc problem.Thats what I have to do on about all flights. Jeffg