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Products Support => GSX Support MSFS => Topic started by: WebMaximus on September 28, 2022, 02:08:47 pm

Title: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 28, 2022, 02:08:47 pm
I know there have been lots of discussions around this but I still can't make it work correctly and according to what the documentation says on this subject.

I start with lets say 2500 kg. I call for the fuel truck which arrives and when asked to enter the desired fuel quantity, I put in lets say 7500 kg in the TOTAL KGS field in the PMDG FMC on the FUEL page.

Doing this, I see how the counter starts increasing on the fuel truck but it will only last for a couple of seconds before it says refueling is complete and the truck will drive away. I've made sure 'Always refuel progressively' is ticket and I've also made sure Detect custom aircraft system refueling is not checked. In the same way, I've made sure the show MSFS fuel dialogue is not checked on the aircraft config screen.

As I recall it, the problem might be how the TOTAL KGS field in the FMC isn't "monitored" by GSX but only the LEVEL field where you can enter a percentage of fuel. Would that explain why I can't make the refueling work correctly and if so, is there any way you can make sure also the TOTAL KGS field will be monitored in the same way as the LEVEL field? Since it's quite cumbersome not being able to put in the actual amount but instead having to try figure out how many percentage that will be based on the fuel required figure from the SimBrief OFP.

What would be truly awesome of course would be to have GSX use the fuel figure directly from the SB OFP but as I understand it, this only works with aircraft where you have checked to use the default MSFS fuel dialogue. Which shouldn't be used for the PMDG 737. I actually did try it just for testing purposes but never got the option to use the fuel figure from SimBrief. According to the manual, you should have an extra option for this in the menu. Maybe I misunderstood the manual?
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 28, 2022, 04:33:37 pm
If an airplane cannot be refueled by GSX, and the PMDG ( and the Fenix ), can't, so you can't use the GSX SimBrief fueling option, which only work if GSX is refueling the airplane.  If the airplane refuel itself, it's clear the SimBrief GSX refueling can't be used, since GSX is not really refueling.

How to refuel such airplanes has been discussed and answered (and of course there's a specific page on the manual too ) so many times, that we made a video about it:

Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 28, 2022, 05:41:04 pm
Thanks Umberto but I've already seen that video.

I'm not sure if you took the time to fully read my post above. Based on some of your comments, I think maybe you didn't. I suggest you read it one more time and you'll find how I'm well aware of the things you mention but also how I have a question for you/suggestion to maybe why it's not working for me. All about what field you're using in the FMC to put in the amount of fuel required.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 28, 2022, 05:43:59 pm
All about what field you're using in the FMC to put in the amount of fuel required.

Well, you said I haven't read your post but, if you are asking this, it seems you haven't really saw the video, since which field is used in the FMC is surely shown there.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 28, 2022, 06:26:25 pm
Would have been so much quicker and easier if you simply replied to my actual question, don't you think?

"As I recall it, the problem might be how the TOTAL KGS field in the FMC isn't "monitored" by GSX but only the LEVEL field where you can enter a percentage of fuel. Would that explain why I can't make the refueling work correctly and if so, is there any way you can make sure also the TOTAL KGS field will be monitored in the same way as the LEVEL field? Since it's quite cumbersome not being able to put in the actual amount but instead having to try figure out how many percentage that will be based on the fuel required figure from the SimBrief OFP."

As mentioned in my post, it's quite cumbersome to translate KGS to a percentage on every flight. I'm not even sure why you decided to use the percentage field instead of the total field? I like to think many of us and especially when using SimBrief will put in an actual value rather than a percentage of fuel.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 28, 2022, 08:12:23 pm
Would have been so much quicker and easier if you simply replied to my actual question, don't you think?

"As I recall it, the problem might be how the TOTAL KGS field in the FMC isn't "monitored" by GSX but only the LEVEL field where you can enter a percentage of fuel. Would that explain why I can't make the refueling work correctly and if so, is there any way you can make sure also the TOTAL KGS field will be monitored in the same way as the LEVEL field? Since it's quite cumbersome not being able to put in the actual amount but instead having to try figure out how many percentage that will be based on the fuel required figure from the SimBrief OFP."

As mentioned in my post, it's quite cumbersome to translate KGS to a percentage on every flight. I'm not even sure why you decided to use the percentage field instead of the total field? I like to think many of us and especially when using SimBrief will put in an actual value rather than a percentage of fuel.

I have to agree with WebMaximus, because the refueling procedure has not interested me in using it yet. Simbrief shows me the value in KGS just as I have the KGS set in FMC. Unfortunately, I did not find anywhere the possibility to find a change in GSX of these units such as the KGS/LBS option in FMC.
I create a flight in Simbrief and I know that Block Fuel = 7284KGS - will be needed.
Once I manually fill it, it's done. If I were to use a refueling truck, either enter the percentages in LBS or Custom, the car will then just drive off and it's done, so nothing much. Therefore, the only question is why I only fill in the percentages and not the total volume of fuel in KGS which will be loaded for the flight? Or is it not possible? It doesn't seem to me that it depends only on the percentages when refueling in the Level item.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 12:03:21 am
Care to comment on this one Umberto and whether you could allow to also use the TOTAL KGS field for the reason mentioned?
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 02:54:16 am
I'm sure there's a reason why you didn't already design it like this but I was just thinking to myself, wouldn't it be possible for GSX to calculate the percentage required by itself and then based on that calculation, determine for how long the fuel truck should stay?

GSX already has access to the SimBrief OFP where it can see the amount of fuel required. Let's say 7500 kgs is required.

GSX could then divide that amount of fuel by the total fuel capacity for the aircraft type currently loaded. Such as the PMDG 737-800 with a fuel capacity of 20.891 kgs. Resulting in 35.9%

The huge benefit of using such a method would be how you no longer need to worry about which field in the FMC is used. Based on how GSX already has all info required and can start the refueling process automatically.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 30, 2022, 07:56:18 am
I'm sure there's a reason why you didn't already design it like this but I was just thinking to myself, wouldn't it be possible for GSX to calculate the percentage required by itself and then based on that calculation, determine for how long the fuel truck should stay?

GSX already has access to the SimBrief OFP where it can see the amount of fuel required. Let's say 7500 kgs is required.

GSX could then divide that amount of fuel by the total fuel capacity for the aircraft type currently loaded. Such as the PMDG 737-800 with a fuel capacity of 20.891 kgs. Resulting in 35.9%

The huge benefit of using such a method would be how you no longer need to worry about which field in the FMC is used. Based on how GSX already has all info required and can start the refueling process automatically.

Yes, that's exactly what I meant. Do it the other way around... don't put the percentages but the total number of fuel, from which the percentages are then calculated to the total capacity. If the GSX can read from the Simbrief, I think it's an easy thing for Umberto or this  edit. The refueling truck would then be used immediately and clearly with the data of the total amount of fuel for the given flight.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 08:01:27 am
Ah, sorry. Didn't understand that but read your last post as if you suggested to use the other field in the FMC to "sense" when the refueling should start.

Well, let's wait to see what Umberto has to say about this.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 08:48:00 am
All your comments really makes me wonder if you really understood how GSX works, when the airplane refuels itself, because it really seems you haven't. Particularly all the reference about what "Units GSX should use", or if it should use a percentage level or an absolute quantity.

When the airplane is refueling itself ( "show default fuel/cargo dialog option Disabled, as in our default config for the PMDG 737 ), GSX doesn't use or care about which method you use to INCREASE the fuel quantity:

- If the airplane allows you to set the fuel quantity as a percentage, GSX won't care, as long the fuel quantity on board INCREASED after the Truck went in position.

- If the airplane allows you to set the fuel quantity as a Level in Kgs, GSX won't care, as long the fuel quantity on board INCREASED after the Truck went in position.

- If the airplane allows you to set the fuel quantity as a Level in Lbs, GSX won't care, as long the fuel quantity on board INCREASED after the Truck went in position.

GSX Fuel system read data from the simulator in USGAL, the trucks have their capacity expressed in USGAL and their pump performance (which ONLY is used to calculate how much time the Truck should stay when the "Always Refuel Progressively" option is Enabled but the airplane has loaded itself "Instantly ) is expressed in GPM ( USGALS/minute ).

This means, no matter which method or unity of measure the *airplane* let you use it, it won't make the slightest difference to GSX, since it's only reading data from the simulator in USGAL, and it calculates values only based on that, an increase is an increase so, as long you follow the procedure that has been explained so many times, including in the above video, GSX will always detect a Fuel increase IF it really happened in the airplane, and will show the Truck for as long it would have taken IF GSX was actually refueling, which is simply the amount of the INCREASE detected, converted into and USGALS, divided by the performance figure of the truck, which is expressed in GPM. That will be the amount of minutes the truck will stay.

How SimBrief has anything to do with this ? NOTHING, of course.

When the airplane "refuels itself" (again: "show default fuel/cargo dialog option Disabled, as in our default config for the PMDG 73 ) , unless the airplane KNOWS about your SimBrief flight plan by itself, you just can't use GSX SimBrief integration because the airplane is REFUELING ITSELF! so, whatever SimBrief integration you can ( or can't ) use, it won't have anything to do with GSX.

Because it seems to me, that by discussing about "GSX Units of measures" or "Simbrief", you changed the GSX internal configuration to Enabled GSX Refueling over an airplane that can't be refueled by GSX, like the PMDG. There is a reason why that option is Disabled by default, and it's just because while it might *appear* to kinda-work, in fact the PMDG doesn't expect to be refueled externally, resulting in several inconsistencies in its own menus, that's why we set the option to Disabled. With the Fenix A320 is completely impossible to Fuel the airplane from GSX, since it's likely using a completely custom fuel system that GSX just can't touch.

Basically, you can't just force GSX to refuel an airplane that *cannot* be refueled, as a way to use GSX SimBrief integration to be added to an airplane that doesn't have one. Or, more precisely, to be added to an airplane that doesn't have one AND cannot be refueled by GSX.

Because yes, of course, if the airplane you use has a 100% standard fuel system, it CAN be refueled by GSX, and in that case, you'll see the GSX refuel menu which has a series of pre-set quantities AND an extra SimBrief option, with the exact quantity you had on the flightplan.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 09:46:37 am
Umberto,

As I've been trying to tell you so many times now, using the TOTAL KGS field in the PMDG FMC to increase the fuel level, the GSX fuel truck will drive away within seconds. If I however use the LEVEL field in the PMDG FMC where you're putting in a percentage to increase the fuel level, the GSX fuel truck will stay for as long as expected and based on the logic you explain.

Hence the question, would it be possible to make GSX also detect the increased amount of fuel when using the TOTAL KGS field?

Again based on what you say, I don't see why that doesn't already work. Since regardless of what field you use to increase the amount of fuel, it will still be an increase. The way it's working now though, it only works like you explain when using the LEVEL field in the PMDG FMC. Using the TOTAL KGS field, the GSX fuel truck will drive away seconds after you put in the new value.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 09:53:37 am
Umberto, question, would it be possible to make GSX also detect the increased amount of fuel when using the TOTAL KGS field?

As I think I explained so many times, GSX doesn't have the slightest knowledge of which page or method or unit of measure you use in the airplane when the airplane is refueling itself, it JUST monitors the total fuel quantity and wait for an increase.

If the fuel truck went away immediately, the only possible reasons are:

- you haven't set a fuel quantity larger then the one you had when you called the GSX Truck AFTER you saw the message to do so.

OR

- you did, but for some reason, when using *that* particular menu, the airplane hasn't really increased the fuel quantity.

Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 10:58:13 am
Have you tried this yourself with the PMDG?

None of the possible reasons you mention are true. I'm positive I increased the fuel level after I was asked to do so by GSX and I'm equally positive the fuel level did increase. Since I was able to get to my destination and saw the correct amount of fuel in the aircraft.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 11:52:29 am
Have you tried this yourself with the PMDG?

I tried it in the way I shown in the video, that works, and so it will work any other method, as long the airplane fuel quantity really changes, GSX doesn't even know HOW or WHY it changed.

Quote
None of the possible reasons you mention are true. I'm positive I increased the fuel level after I was asked to do so by GSX and I'm equally positive the fuel level did increase. Since I was able to get to my destination and saw the correct amount of fuel in the aircraft.

As I've said, GSX will read the standard variables for the total fuel quantity on board, no matter the method used to change those so, if you are sure you did everything correctly on your side, the only possible explanation left is, using different FMC menu options will result ( or not ) in those variables changing, but since those are the only ones GSX can see, there's nothing we can do to affect  this behavior, other than suggesting to use a FMC workflow that has been tested to work, which was the whole point of the video.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 12:15:08 pm
We already know it's working the way it's shown in the video. Where the amount of fuel is increased using the LEVEL field in the PMDG FMC. The question has all this time been how it doesn't work when using the TOTAL KGS field. Which doesn't go hand in hand with the logic you describe. How GSX will only look for an increase in fuel quantity. Since putting in fuel using the TOTAL KGS field will increase the fuel level in the aircraft. Which according to you is the only thing GSX is looking for.

So with this said, can you please just give it another go and instead use the TOTAL KGS field and see if it will work for you?

Also, do you appreciate the issue we have tried pointing out to you? How it's quite cumbersome using the LEVEL field where you're supposed to enter a percentage of fuel. Rather than an exact number of KGS from the SimBrief OFP.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 12:59:24 pm
Since putting in fuel using the TOTAL KGS field will increase the fuel level in the aircraft. Which according to you is the only thing GSX is looking for.

Please re-read my explanation more carefully: GSX is not looking at the PMDG FMC, because anything there is not accessible to GSX. GSX is only looking at the standard total fuel quantity variable, if that doesn't change from *that*, there's not much GSX can do about it.

Quote
So with this said, can you please just give it another go and instead use the TOTAL KGS field and see if it will work for you?

It won't be very useful to do this check, other than acknowledging the fact that, for some reason, using the LEVEL field resulted in the standard fuel quantity variables to set, while using the TOTAL KGS would not. But I'll check that anyway.

Since, as I've said, we don't have any knowledge about the fuel level other than the one exposed on the standard fuel variables, if they don't change in that case, the only suggestion would be using the one that does.

Quote
Also, do you appreciate the issue we have tried pointing out to you? How it's quite cumbersome using the LEVEL field where you're supposed to enter a percentage of fuel. Rather than an exact number of KGS from the SimBrief OFP.

And how, exactly, this has anything to do with GSX ? If you find a part of the PMDG FMC interface to be cumbersome, there's not much GSX can do to change that.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 30, 2022, 02:30:30 pm
Have you tried this yourself with the PMDG?

I tried it in the way I shown in the video, that works, and so it will work any other method, as long the airplane fuel quantity really changes, GSX doesn't even know HOW or WHY it changed.

Quote
None of the possible reasons you mention are true. I'm positive I increased the fuel level after I was asked to do so by GSX and I'm equally positive the fuel level did increase. Since I was able to get to my destination and saw the correct amount of fuel in the aircraft.

As I've said, GSX will read the standard variables for the total fuel quantity on board, no matter the method used to change those so, if you are sure you did everything correctly on your side, the only possible explanation left is, using different FMC menu options will result ( or not ) in those variables changing, but since those are the only ones GSX can see, there's nothing we can do to affect  this behavior, other than suggesting to use a FMC workflow that has been tested to work, which was the whole point of the video.

The point of the whole video is that GSX doesn't care what you wrote, but the point is that the video serves to add fuel to the current state of the amount of fuel to a certain percentage in the item LEVEL, not the total amount like TOTAL KGS.  There was only an effort in the fact that if I have KGS units set in FMC, so that the refueling truck also offers me how much KGS is refueled and not in LBS. So, unfortunately due to a mutual misunderstanding of what was asked here, the problem is not resolved and I remain with refueling  without a GSX vehicle and I will refuel directly and simply in FMC /initial value for example 4056KGS, rewritten to 7960KGS in TOTAL KGS and it is simply refueled/. If I were to use a refueling truck, the data will be overwritten and it will immediately leave again, so it is useless to actually call it:  -))
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 30, 2022, 02:42:24 pm
The question sounded clear: For a certain flight that Simbrief I need a total fuel amount of 7580, ok... after I start the MSFS and stand with the plane on the field, the FMC shows me the TOTAL fuel status of 3540 in KGS units. Ok, let's refuel the rest..  .we call the refueling truck, it arrives and an offer pops up, what percentage do I want to refuel and in LBS?  What do I know?  I need to refuel so that the total capacity according to the data from the Simbrief is 7580KGS... fine, I'll look in the FMC and now throw some percentages into the LEVEL field?  Should I recalculate this as a percentage of the total capacity to get to 7580KGS?  No, this is a really bad way. So I just refuel directly and instead of changing the item LEVEL, I change the item TOTAL straight away and I have 7580KGS and it's done... fuel truck thank you, but you can also leave with your LBS unit and percentages.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 02:58:20 pm
Should I recalculate this as a percentage of the total capacity to get to 7580KGS?  No, this is a really bad way. So I just refuel directly and instead of changing the item LEVEL, I change the item TOTAL straight away and I have 7580KGS and it's done... fuel truck thank you, but you can also leave with your LBS unit and percentages.

And again, you still are missing the whole point:

GSX doesn't know, and cannot possibly know, if you used the option LEVEL or TOTAL KGS option in the FMC! The one and only thing GSX can possibly see is an actual fuel increase the standard variables that holds the total fuel quantity, it cannot even possibly know WHY and HOW that level changed and it cannot obviously know WHY it hasn't, if it hasn't.

The one and only thing GSX can possibly know about any airplane is the standard variable that holds the total fuel quantity, that's it.

Or, let's try to explain it in a different way: shouldn't you expect the standard total fuel quantity variable to end up getting the same value ( regardless which option has been chosen), assuming you chose a level that would match the quantity ?
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 03:02:45 pm
Have you tried increasing the fuel quantity using the TOTAL KGS field yet?
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 03:04:28 pm
Have you tried increasing the fuel quantity using the TOTAL KGS field yet?

And what that would accomplish in relation to GSX, other than saying "this airplane doesn't change the total fuel quantity variables with that option, but it does with the other one" ? It's not as if we could change that. But yes, I'll try that.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 03:09:21 pm
Have you tried increasing the fuel quantity using the TOTAL KGS field yet?

And what that would accomplish in relation to GSX, other than saying "this airplane doesn't change the total fuel quantity variables with that option, but it does with the other one" ? It's not as if we could change that. But yes, I'll try that.

How would it be possible to get to your destination when adding the fuel required via the TOTAL KGS field if in fact using that method wouldn't put fuel into the tanks?
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 03:42:28 pm
How would it be possible to get to your destination when adding the fuel required via the TOTAL KGS field if in fact using that method wouldn't put fuel into the tanks?

A possible explanation might just be some kind of delay from the moment you change that option to when the variable really changes. Try to wait a bit *after* GSX told you to use the PMDG FMC to set the quantity.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 30, 2022, 04:10:59 pm
How would it be possible to get to your destination when adding the fuel required via the TOTAL KGS field if in fact using that method wouldn't put fuel into the tanks?

A possible explanation might just be some kind of delay from the moment you change that option to when the variable really changes. Try to wait a bit *after* GSX told you to use the PMDG FMC to set the quantity.

Would it be possible, given that everyone uses a different LBS or KGS unit, to put GSX as a choice in the menu?  After that, if the car came to refuel, in the case of another Custom item, it would be refueled in KGS and not in percentage LBS to LEVEL but to the volume in TOTAL KGS.
That's the whole point of refueling with GSX. It would be newly set who uses which unit in the FMC and accordingly the refueling car would give an offer to refuel, no variables but the total amount of fuel that is necessary to carry out the flight calculated from the data  Simbrief where AGAIN it is possible to choose if it will be LBS or KG.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 04:38:40 pm
Would it be possible, given that everyone uses a different LBS or KGS unit, to put GSX as a choice in the menu? 

The GSX refuel menu with pre-set Percent quantities, which is the only place were you could see any kind of indication about fuel quantities being either Kgs or Lbs ALREADY indicates a different unit of measure depending on the simulator International settings, and when SimBrief is available, the unit of measure in the SimBrief plan.

But of course, that menu is not even shown on an airplane that REFUEL ITSELF, like the PMDG 737, which is the subject of this thread.

As I've said, so many times, GSX monitors an *increase* in the fuel quantity. Which unit of measure the airplane use to show fuel to the user, doesn't matter.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 30, 2022, 06:07:11 pm
Maybe we have different views on it, but if in FMC I have set the display of fuel in KGS and after calling a tanker, the table in LBS units is loaded, I don't know, but without another choice of setting it just seems strange to me. But what can be done, you are the creators of this project and as you decide, so it will be. The only option left for me is to refuel from the rest of the fuel by changing the numbers in TOTAL KGS. What can be done, since I won't be using the truck to fill up the fuel. It is sad.

In other aircraft such as Asobo A320, Fenix ​​A320 or LVFR 319&321, I also do not use the method of calling a refueling truck, because I did not find the possibility of refueling in some types, because some possibilities simply do not work, the aircraft has limited possibilities, especially the incomplete Asobo A320.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Michael Moe on September 30, 2022, 06:18:41 pm
I must admit it is sad that PMDG and FSDT cant seem to work in tandem but sometimes these things just happens.
For at start this is just a visual software from GSX which is quite "friendly" to PMDG planes.

I have the FSLA3X series in P3D and i think all might just want to have the same level of GSX/airplane quality.

Michael Moe
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 06:31:49 pm
And how, exactly, this has anything to do with GSX ? If you find a part of the PMDG FMC interface to be cumbersome, there's not much GSX can do to change that.

What is cumbersome has nothing to do with the PMDG, what is cumbersome is how we're forced to use the LEVEL field in the PMDG FMC for your software to work as intended. Instead of just putting in the amount of fuel we get from SimBrief into the TOTAL KGS field in the FMC.

The way it is now and for your software to work when it comes to the refueling animation, we need to take the amount of fuel in KGS from SimBrief and divide this number by 20891. In order to get the percentage to put into the LEVEL field in the FMC. Would have been so nice being able to simply put in the amount of fuel in KGS directly into the TOTAL KGS field.
Title: Re: How to properly refuel the PMDG 737-800
Post by: Leopardo Di Cardio on September 30, 2022, 06:48:09 pm
And how, exactly, this has anything to do with GSX ? If you find a part of the PMDG FMC interface to be cumbersome, there's not much GSX can do to change that.

What is cumbersome has nothing to do with the PMDG, what is cumbersome is how we're forced to use the LEVEL field in the PMDG FMC for your software to work as intended. Instead of just putting in the amount of fuel we get from SimBrief into the TOTAL KGS field in the FMC.

The way it is now and for your software to work when it comes to the refueling animation, we need to take the amount of fuel in KGS from SimBrief and divide this number with 20891. In order to get the percentage to put into the LEVEL field in the FMC. Would have been so nice being able to simply put in the amount of fuel in KGS directly into the TOTAL KGS field.

Exactly, that's exactly what we're all about together, but we're probably not quite understood, unfortunately.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 06:55:32 pm
How would it be possible to get to your destination when adding the fuel required via the TOTAL KGS field if in fact using that method wouldn't put fuel into the tanks?

A possible explanation might just be some kind of delay from the moment you change that option to when the variable really changes. Try to wait a bit *after* GSX told you to use the PMDG FMC to set the quantity.

I was just about to upload a video for you where I'm demonstrating how setting both the TOTAL KGS and LEVEL fields in the PMDG FMC will also increase the amount of fuel in MSFS in the same way. The answer is it's taking approx 2 seconds for the new level of fuel to be updated in MSFS after having changed the amount of fuel in the PMDG FMC. Same thing regardless what field is used, ie putting in the new amount of fuel expressed in KG or as a percentage of the full tank.

However...when I then started the refueling process in GSX to also show you a video how it's working as long as you're using the LEVEL field but how the fuel truck will immediately drive away when using the TOTAL KGS field...what do you know...suddenly the fuel truck stays in position and the counter seen on the truck starts counting even when using the TOTAL KGS field.

So...problem solved I guess...even when I'm scratching my head considering how many times I've seen the truck just drive away when changing the level of fuel via the TOTAL KGS field. I'm quite puzzled to say the least. The only difference I can think of was how I this time only triggered the refueling services in GSX. Where I normally also have asked for other services such as boarding, catering etc. No clue if or how that could affect the refueling logic but sounds unlikely.

Oh well, I'm super happy as long as it will continue to work like this. All I ever wanted and I hope it will last! Meaning I will hopefully be able to spend some of my spare time actually enjoying myself and flying instead of having these endless debates in here.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 10:36:19 pm
I was just about to upload a video for you where I'm demonstrating how setting both the TOTAL KGS and LEVEL fields in the PMDG FMC will also increase the amount of fuel in MSFS in the same way. The answer is it's taking approx 2 seconds for the new level of fuel to be updated in MSFS after having changed the amount of fuel in the PMDG FMC.

So, all that drama about having to use a "cumbersome" method, because a supposed "problem" in GSX, when in fact GSX was always working perfectly fine, and the ONLY real issue was that, the *actual* fuel quantity in the sim ( the only one GSX can possibly read ) was updated 2 seconds after being shown in the FMC ?

I already guessed timings might have been the issue, maybe the percentage level option is faster than the quantity but, again, it's something completely internal to the PMDG, until those changes are propagated to the standard simulator variables, as far GSX is concerned, nothing happened.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on September 30, 2022, 10:58:29 pm
Maybe we have different views on it, but if in FMC I have set the display of fuel in KGS and after calling a tanker, the table in LBS units is loaded, I don't know, but without another choice of setting it just seems strange to me. But what can be done, you are the creators of this project and as you decide, so it will be.

What do you mean, exactly, with "after calling a tanker, the table in LBS units is loaded". Do you mean the GSX refueling menu ? That would be the only place were you could see any kind of indication about fuel quantities being either Kgs or Lbs and they ALREADY indicates a different unit of measure depending on the simulator International settings.

But of course, that menu is not even shown on an airplane that REFUEL ITSELF, like the PMDG 737, which is the subject of this thread.

Have you possibly CHANGED the default configuration for the PMDG to have GSX Refueling the airplane ? You shouldn't do that, the PMDG should not be refueled by GSX, it must refuel itself, with GSX only *visually* reacting to the airplane own refueling process.

Once this is clear, it should be obvious that, the usage Lbs or Kgs is completely irrelevant, GSX will just monitor an increase, regardless which units of measures are used in the airplane.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on September 30, 2022, 11:28:03 pm
So, all that drama about having to use a "cumbersome" method, because a supposed "problem" in GSX, when in fact GSX was always working perfectly fine, and the ONLY real issue was that, the *actual* fuel quantity in the sim ( the only one GSX can possibly read ) was updated 2 seconds after being shown in the FMC ?

I already guessed timings might have been the issue, maybe the percentage level option is faster than the quantity but, again, it's something completely internal to the PMDG, until those changes are propagated to the standard simulator variables, as far GSX is concerned, nothing happened.

Well, the "drama" wasn't caused by the issue itself but because of your mostly arrogant attitude. Just like now when you're using words like supposed "problem". When both myself and others saw this issue, it wasn't a supposed problem but a very real problem. I witnessed the same thing over and over again when I was testing. I wish I knew why it suddenly started working but unfortunately I don't. And frankly, it doesn't really matter. What matters is it's now working. Or at least it was on my last flight. I can only hope it will continue working on coming flights.

After having "known" you for many years, I think it's highly unlikely your arrogant attitude will ever change. That obviously is just the way you are as a person and something those of us faced by it will have to accept as long as we decide to pay for and use your products. With that said, it would have been so much more nice if the dialogue from your side instead would have been something like

"I'm sorry to hear guys you're having this issue. Let's try to figure out what is happening here and find a way to fix it."

Then once you receive the kind of message you did from me when I said it was all of a sudden working, a proper response from you would have been something like

"Wow, that's great it's now working for you. I'm happy to hear that and how you're finally able to enjoy my product the way it's meant to be enjoyed"

This however is customer communication way out of your league. The attitude you're showing in here over and over again for as long as I can remember works fine in this kind of forum for these kind of products. In the "real life" though, you wouldn't last for long Umberto with this attitude of yours. I can say that from own experience working as a Customer Success Manager for a big company. If I would use this kind of "tone" with my customers, I wouldn't be able to say my name before I had to start looking for another job.

Anyway, I'm happy I have reached a point where I'm able to start enjoying the product I bought from you and I'm looking forward to do more flying using it.

Enjoy the rest of your evening.
Title: Re: How to properly refuel the PMDG 737-800
Post by: virtuali on October 01, 2022, 12:01:20 am
Well, the "drama" wasn't caused by the issue itself but because of your mostly arrogant attitude.

Wrong, it was caused entirely by your continuing assumptions GSX was the one with a problem, see here, who's the one with the attitude here ?

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what is cumbersome is how we're forced to use the LEVEL field in the PMDG FMC for your software to work as intended.

Yes, that bold around "your software" was a bit arrogant, especially considering it turned out to be wrong.

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What matters is it's now working. Or at least it was on my last flight. I can only hope it will continue working on coming flights.

It always worked, the only real issue was the airplane having a small delay setting the relevant simulator variables.  Which (guess what), was entirely consistent with my repeated explanations that the only thing GSX could possibly see were the relevant simulator variables and my repeated explanations about the only possible issue was the airplane not setting them or, like you found out, setting them with some delay.

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If I would use this kind of "tone" with my customers, I wouldn't be able to say my name before I had to start looking for another job.

That's probably one of the advantages of owning the company, that ( as you said yourself ) has doing business for so many years. But I think I'm quite in a good company because, if you read around, the Flight sim industry is full of people that support is NOT their job.

It's not obviously mine, and not many companies in the Flight sim "industry" ( quotes are intentional ) can afford a trained support professional, somebody that is able to tell you to just go away, using words so nice and courteous that you won't even realize. I'm not such guy, I'm a programmer, something for me is very binary and it's either right or wrong, and that might sound rude sometimes, but it's usually accurate.

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Anyway, I'm happy I have reached a point where I'm able to start enjoying the product I bought from you and I'm looking forward to do more flying using it.

Well, of course you are, since most of the issues you found, weren't really issues in the first place.
Title: Re: How to properly refuel the PMDG 737-800
Post by: WebMaximus on October 01, 2022, 12:47:28 am
I rest my case Umberto.

Have a good one 👍