Question about payload and Flight save files

[ACSoft 3]

Hello,As you know, both PMDG 747-400 & md11 have the ability to restore their states along with Flight save files. This is great, because it allow to save a flight and reload it later, to continue the flight, to review a interesting situation, etc...Suppose now I decide to reload a Flight made some time ago and I know that I made several other flights since that time, with different payload configurations. Obviously, my Flight made some time ago, WILL NOT FIT with the actual payload configuration (payload is memorized into "aircraft.cfg").My question is, for both PMDG 747-400 & MD11 aircrafts:If I reload my Flight, will I fly with the last flown payload values, or does PMDG sophisticated code restore internally the "load stations" variables, with values saved within the PMDG aircraft state, generated when I saved my Flight ?In other words, can someone of the development team explain to me, the exact behaviors of both aircraft's in regard with that matter ? This would be very useful for me, to know how to manage properly my saved Flight files.Many thanks in forward.Alain Capt

[ACSoft 3]

Toc, toc, toc ! Dev Team, anybody there ?I would love to receive an answer, this is why I added this, to restore my question on the top.Again, thanks in forward.Alain Capt

[downscc 1,327]

Alain, I would have answered earlier but you asked for exact behavior of...etc... ; whew, I know I couldn't do that.However, all the pmdg sims (except B1900 that might but I don't have knowledge of) will keep fuel on board, weight and cg values in the saved flight info. Having said that, the load station variables that are eluded to with the MD11 load manager are not saved to my knowledge, but are not required. This is just eyecandy for us, the airplane only needs to know the total moment not how it was calculated.Sorry I don't have the full technical explanations.

[ACSoft 3]

Alain, I would have answered earlier but you asked for exact behavior of...etc... ; whew, I know I couldn't do that.However, all the pmdg sims (except B1900 that might but I don't have knowledge of) will keep fuel on board, weight and cg values in the saved flight info. Having said that, the load station variables that are eluded to with the MD11 load manager are not saved to my knowledge, but are not required. This is just eyecandy for us, the airplane only needs to know the total moment not how it was calculated.

Hummm, I have some doubt that "aircraft.cfg -> station_load.X" parameters are of no importance and for sure, the Load Manager do update them, when you press "save to file" in it.Being part of "Aircraft.cfg" they should affect the FS flight model, unless PMDG code would overwrite the internal corresponding FS variables, with the original values at the time the flight save was done by the user.

Sorry I don't have the full technical explanations.

No problems, take your time to ask this to the "specialist". I am not in hurry, I just wanted to be sure my request was taken in account.Alain Capt

[downscc 1,327]

The station_load parameters in pmdg aircraft (except B737) bear no relationship to actual implementation, which in pmdg uses a datum forward of the nose like the real aircraft; therefore, loading must be done with load manager. So, we are back where we started: The saved flight will save current weight and cg and that's about it for loading.

[ACSoft 3]

Sorry Dan, but I have some difficulties to understand exactly what you mean.Let me take an example:Suppose I do a flight with a quasi empty aircaft (speaking of payload). So, I set this situation in the the payload editor, I save, then I launch FS and one of my "cold start flight" file, prepare my flight, takeoff and finally save a Flight situation, for example during the approach.Later on, I do the same way another flight, using the same method, but this time, with a quasi fully loaded aircraft.Now, some days later after this last flight, I run FS again and load straight forward my Flight situation during approach. Are-you telling me that my landing will behave EXACTLY the same as it behaved during the original flight when I saved ?If it is the case, it is great !!! It would mean the aircraft use "station_load" parameters just as a "memory" of what was set into the Payload Manager. It would mean that, in fact, these "station_load" parameters in aircaft.cfg, are useless as soon as you are flying, because it is only the memorized current weight and cg which will affect the physic of the flight, almost speaking of PMDG aircraft ?Is-it that what you said ?Thanks in forward to confirm.Alain Capt

[downscc 1,327]

Although the specifics of how it happens might not be exactly as you expect, the end result is that the saved pmdg flight should have the same fuel and payload when loaded as when it was saved.Having said that, I want to provide a caveat: This is the behavior that I have read about, but I have never saved a flight in progress (that just isn't my interest). However, flights configured for starting on the ramp that I do save do indeed retain the parameters of the original flight when re-loaded.