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Search results

  1. J

    FS2004 model export issues

    Bump. 🙂
  2. J

    FS2004 model export issues

    I've managed to identify a few causes for the problems I described: The rain animation is a special case that requires a specific structure in the .x file in order to work. This structure is not replicated by MCX. Most transparency issues seem to have two causes: On dynamic textures (prefixed...
  3. J

    FS2004 model export issues

    Hello, I'm working on some projects that are FS2004-based (dead platform, I know) and came across some issues with the FS2004 model export in ModelConverterX. To reproduce this, load the default 737-400 model file from FS2004 and then export it to the FS2004 .MDL format. This should show the...
  4. J

    Table 1505

    They're probably just simulating fuel being injected into the engine and 1505 could be seen as the engine response from that fuel being injected. The "corrected" part might be due to that the "CFF"-calculation is based on corrected N2. They simply wanted to keep everything in the same...
  5. J

    Table 1505

    When you can predict a certain result based on a theory, it usually means you're on to something. It is completely true that it will never go above the highest CN2 in 1505 and never below the lowest CN2 in 1505 if there's combustion. Extensive testing supports this and it fits with the SDK...
  6. J

    Table 1505

    Here's some actual data (measured and calculated): https://www.dropbox.com/s/c4a681sucx7sl3l/Engine Spool Rate.xlsm?dl=1. I wrote some custom functions in VBA to make the calculations easier. If you want to see what actually happens inside these functions, just enable the Developer tab in Excel...
  7. J

    Table 1505

    The calculation is done as follows, although quite a bit simplified: Interpolate 1503 and 1504 to get a CN2 target based on mach, throttle and IAP. Calculate corrected fuel flow using the following equation: CFF_new = (CN2_target - CN2_current) * fuel_flow_gain * static_thrust * delta_time +...
  8. J

    Table 1505

    This project is not doing many knots at the moment due to a severe lack of motivation, which is mostly caused by the fact that MSFS2020 will render this document obsolete. The parts of the document that describes how engine spool and response works is finished but what's missing is how to apply...
  9. J

    Table 1505

    No the document has not been released yet due to RL-stuff. I will most likely not include much guidance on how to fine tune the engine spool behavior and just focus on how engine spool works in the sim just to get the document released soon-ish. It will be up to someone else to take the...
  10. J

    Discrepancy between ADE and Google Earth

    Manually via Google Earth by placing a placemark, then opening the placemark to get the latitude and longitude. For now the pair of coordinates only represent two locations. They have nothing to do with imagery of any kind.
  11. J

    Discrepancy between ADE and Google Earth

    I really appreciate the in-depth detail of your replies regarding the imagery. Are the following statements correct? The distance between N63.798411, E020.268956 and N63.782811, E020.30142 should not be the same in both Google Earth and ADE because they don't use the same projection...
  12. J

    Discrepancy between ADE and Google Earth

    Hm... okay. If we ignore the background images completely for now, what you are saying is that if I take a set of coordinates from Google Earth, these coordinates would be wrong in ADE at high latitudes?
  13. J

    Discrepancy between ADE and Google Earth

    Hello, I noticed that I couldn't make a runway fit properly against my background images. It's as if the scale is wrong somehow. To test this, I placed two nodes at coordinates N63.798411, E020.268956 and N63.782811, E020.30142. After that I measured the distance between those two nodes in ADE...
  14. J

    Table 1505

    I'll see what I can do. The equations for RPM are beyond the scope of the document (and my knowledge) and because of shaft friction, RPM affects torque spool up. I'll still provide the equations for torque though, but without the RPM equations. The sad part about torque is that there's a...
  15. J

    Table 1505

    It comes from the air-files. The table data blocks found in air-files always contain the following information: ID (4 bytes) Size (4 bytes) Data (varying size) The sim uses the ID to figure out what table is what. 0x154B is the ID that asm2air.exe assigns to AIR_P3DV440_CORRECTED_N1_FROM_FF...
  16. J

    Table 1505

    I'm still working on the document. Let there be no mistake - it will be released. I just want to avoid as many silly mistakes as possible so I'm currently retesting all of the equations in all situations I can come up with.
  17. J

    Table 1505

    That's the table I'm referring to. TOKEN_BEGIN AIR_P3DV440_CORRECTED_N1_FROM_FF is the token for table 154B. It fills the exact same purpose as 1505 but the input is CFF instead of CFF/static_thrust. That table is hardcoded (but with slightly different values) in all sim versions prior to v4.4...
  18. J

    Table 1505

    Technically, they didn't specifically say that it replaced that table so no they are not wrong. They only said that you could have more than one fuel_flow_gain: The only way to override the hardcoded table is to use 154B in P3Dv4.4 and newer. Prior to 4.4, it was completely impossible to...
  19. J

    Table 1505

    That's not the table(s) I'm talking about. That's fuel_flow_gain.n and means that you can make fuel_flow_gain vary with CN1/CN2 (depending on turboprop or jet). This has nothing to do with the hardcoded "1505" table used by turboprops to calculate a new target CN1 based on CFF. That table can...
  20. J

    Table 1505

    Are you sure? I know about table 154B but that's found in the .air-file, however I can't find anything like that in aircraft.cfg while browsing the P3Dv4 SDK. fuel_flow_gain.n can be set in the aircraft.cfg file though.
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