However, in FSX payload settings looks like this:
These are the only settings that count. If PMDG uses its own internal simulation of weights that is not sent back to FSX, GSX cannot possibly know about it. It's *possible* that, with our upcoming Cargo Expansion product for GSX, we'll try to interact directly with the most popular airplanes, and possibly know about what each stations does.
As you see, there are For-, Mid- and Aft-Cabin boxes - summary about 79000 lbs. I assume that "Cabin" value means weight of PAX - right?
Unfortunately, that's not how FSX works. Simconnect only provides with a list of loading stations and their weight. The names you are seeing in the user interface are just "names", they can be anything, cargo, cabin, pilot, 2nd pilot, etc. They can be different for each airplane, and they ALSO change depending on the FSX language AND the language used by the airplane developer (on a 3rd party airplane), to name the station.
But for a program point of view ( FSX, hence Simconnect, which goes to GSX ), they are just "stations", there's no way for us to know if a station is a pilot, a whole class of passengers, or a cargo bay, unless we tried to do some adventurous and surely VERY unreliable heuristic matching by parsing the NAME, which will be dramatically unreliable, for all the above reasons. A developer might name a station "coach class", another one "2nd class", etc.
So, instead of trying to do that, GSX simply ask Simconnect the weight of ALL stations, to obtain a total of cargo + passengers, and will divide it by 220 LBS, an industry standard to estimate the load of a passenger + luggage, and this would be used as an estimated number of passengers, which will be the basis to calculate the boarding time, and the number of carts in the loading vehicles.
79000/170(each pax) -> 465 passengers. I have set boarding time per passenger = 2.5 sec what gives in result 1162 sec, and this is equal to nearly 20 min.
The actual calculation GSX made in your case, was 129500 / 220 lbs = 588 passengers, resulting in 24 minutes boarding time, with your settings of 2.5 seconds. If you had GSX at its default setting of 0,4 per passenger, the boarding time would lasted 4 minutes.
Do you think is there possibility to resolve it?
GSX was entirely correct calculating a boarding time of 24 minutes, considering your changed timing setting.
There IS a reason why our default settings are lower than reality....while in reality 24 minutes to board a 777 would be considered very fast, in the sim they become very boring, up to a point you even thought the boarding was "stuck" and there was some kind of bug.
So no, there's nothing to fix, GSX is working as expected.
We are making the system more complex for the Cargo expansion product, so GSX would know how much Cargo any airplane can hold in each Cargo bay, as an additional data we'll provide in the internal database, so we'll be able to treat different cases for:
- Full passenger configurations
- Combo cargo+passengers
- Full cargo
This change to the internal database would surely benefit the normal GSX boarding procedure, even when not using the Cargo expansion.