• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

    • Tag FS2020 specific questions with the MSFS2020 tag.
    • Questions about making 3D assets can be posted in the 3D asset design forum. Either post them in the subforum of the modelling tool you use or in the general forum if they are general.
    • Questions about aircraft design can be posted in the Aircraft design forum
    • Questions about airport design can be posted in the FS2020 airport design forum. Once airport development tools have been updated for FS2020 you can post tool speciifc questions in the subforums of those tools as well of course.
    • Questions about terrain design can be posted in the FS2020 terrain design forum.
    • Questions about SimConnect can be posted in the SimConnect forum.

    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

Cn2 & cn1

WarpD

WarpD

Messages
2,178
Country
us-ohio
Now for the next 'problem'.

Calculating CN2 and CN1 from the tables of records 1502, 1503 and 1504. The goal is to input an altitude, an airspeed in mach and a throttle percentage and seeing the resultant CN2 and CN1 from the tables.

I have all that put into a spreadsheet... and to test it's accuracy I, of course, went flying in FS.

Unfortunately, matching throttle percentage in FS with the same value in the spreadsheet results in accurate CN2 and CN1 only at sea level. Beyond that, it's always low. I had already asked about my IAP Ratio calculations... but that didn't really help... so, what else is there that can cause it to be incorrect? The CN1 result in the sim is always lower than predicted by the spreadsheet for a given throttle percentage and the higher the altitude, the lower it goes.

Clearly I'm mucking something up...
 
Post a screenshot of your 1503 and 1504 tables along with a brief explanation of where the discrepancy occurs in relation to the chart.

Give a scenario (including expected vs resulting numbers for mach, altitude, RPM, and throttle position) where you were expecting one result and ended up with another.
 
Ok... going to the corner with my dunce hat on... *sigh*

Gauge was displaying uncorrected N1/N2... not corrected.
 
You must log in or register to reply here.
Back
Top