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Recent content by Taz5150

  1. Taz5150

    MSFS Custom Toolbar - Force Disabled Panel

    Hi everyone, I am desperately trying to force disabling certain in-game panels (such as VFR Map, ATC, etc.) when a given community aircraft is loaded. Is this possible? Within the Custom Toolbar (the gear icon), I can turn off any of these panels, and the option is maintained next time I open...
  2. Taz5150

    Turbine Oil Temperature Range

    Hi everyone. Oil temperature in MSFS seems to work as in FSX, with same variables: - Oil Cooling Constant: (left it at 0 although like in FSX it doesn't seem to do anything) - Oil Heating Constant: gives maximum oil temperature in Rankine - Oil Time Constant: sets the settling time (both for...
  3. Taz5150

    Setting Oil Quantity with Python SimConnect

    As far as I know, ENG OIL QUANTIY is not settable. That could be it. Best!
  4. Taz5150

    Takeoff-roll at TOGA Engine Issues

    Its probably not that relevant ... I've found several posts regarding FADEC vs. non-FADEC designs and this is where the main development differences are. Also, take into account this is my first experience with engine design for a flight sim; although most of my issues and doubts have been...
  5. Taz5150

    Takeoff-roll at TOGA Engine Issues

    I think we are misunderstanding each other here. Let me try to be more "graphical" on the issue at hand, and forget we are talking about MSFS (I am experiencing the same issue in P3D v5). Here is an excerpt of tables 1503 and 1504 as per your document and common practice within the community...
  6. Taz5150

    Takeoff-roll at TOGA Engine Issues

    Thanks Roy. Yes, the theory is exactly as you say; I don't think I have a problem with that ;) So I do agree that at SL and Mach 0.1, CN2 should be 103.8962% and thus N2 is 104%. This is clear. But correct me if I'm wrong; what the Sim does is interpolate (linearly) between tables 1503 (Mach 0...
  7. Taz5150

    Takeoff-roll at TOGA Engine Issues

    Ok, maybe I’m missing something here. I’ve developed tables 1503 and 1504 as per Roy’s paper; this means that at full throttle and SL, CN2 = N2 = 104% @M0 and thus CN2 = 96.5% @M0.9. At takeoff (TOGA), we start accelerating and building up speed. Since LO/HI tables go from Mach 0 to 0.9, the Sim...
  8. Taz5150

    Takeoff-roll at TOGA Engine Issues

    Precisely, it feels like 1504 is not corrected. Still working on it and testing. Will get back to you all if I find a reasonable answer.
  9. Taz5150

    Takeoff-roll at TOGA Engine Issues

    Nope, an airliner with turbofans. I think part of the problem is with tables 1503-1504 ... for 1503, at maximum throttle I have 104% CN2. For 1504 (@Mach 0.9), at maximum throttle I have 96.5% (the equivalent CN2 due to Mach). Don't tell me why, but if instead of 96.5% I place 104%, then N1 and...
  10. Taz5150

    Takeoff-roll at TOGA Engine Issues

    Hi everyone, After some long months of design, tweaking and a lot of input from this community, I am facing an issue I’m bot sure how to solve. All engine tables have been set accordingly, specially tables 1503-1504, 1502 and 1506 (for net thrust). Everything works fine and is on spot more or...
  11. Taz5150

    MSFS DevMode Drag Polar Zoom

    Hi everyone. The aircraft editor has some nice visual features like the Cd-Cl debug curves. Question is simple: is there a way to zoom in or out of these graphs? Sometimes detail is needed and its impossible to get it as is. Thank you.
  12. Taz5150

    Some doubts on Table 1506

    Thank you Roy. It seems once again the problem is understanding and decoding Asobo’s way of dealing with the engine model. I will keep on investigating.
  13. Taz5150

    Some doubts on Table 1506

    Thank you bstolle. So the process is more or less what I was going to try out: calculate N1 vs Thrust for different Machs at MTOW, and then tweak curves at different weights.
  14. Taz5150

    Some doubts on Table 1506

    Data is taken from the output of an aircraft manufacturer at ISA conditions, but I will re-check. Still, going through the FCOM of a similar aircraft, when looking at Cruise Performance tables, I see the same behavior: same Mach and Altitude you get different N1 and FF for different weights...
  15. Taz5150

    Some doubts on Table 1506

    Thank you Roy. Yes, I think I understand the physics and the reason why N1 and Thrust change with time at same Mach and Altitude. The problem and my question is more specific to Flight Sims and how to build table 1506 when you have so many data points. To give you an example: Altitude: 29,000...
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