QSimPlanner Wind Fix Tutorial

[tknudsen 26]

QSimPlanner is an open source highly versitile takeoff and landing performance tool that can also do flight plannning. Can easily be used for Zibo. Here is a short tutorial on how to fix the wind download bug currently in verison 0.48 for those that use this tool. https://youtu.be/4jeXrlmMBEU

 For those that want to try this tool, its can be downloaded for free here https://qsimplan.wordpress.com/ or from the github repository here https://github.com/JetStream96/QSimPlanner

Edited September 9, 2021 by tknudsen

[C2615 322]

Thanks, I'll try that out after I get home.

I have tried download the wind data manually for a while, before get too lazy and turned my head to Simbrife then, but the route finding function with ablity to avoid a region is still very neat for Qsim

[C2615 322]

I don't think you have downloaded the correct file, as I tried, the QSIM gives me error of "Specified argument was out of the range of valid values." error when try to calculate fuel.

I didn't and can't look into the source code, but I assume QSIM use a totally different source for weather METAR than for Wind aloft as most software do So your check doesn't valid.

Qsim is picky on what's given in grib2 file, BUT it doesn't verify it very well, basically it takes whatever it get "on that line" but not check if that line means what it need. (like not actual number, but, it takes the wind of the 3rd line and think it's for FL320, but not to verify if on this file the 5th line are for FL320 rather than 3rd one for FL280....)

I tried different data download selection with xygrib, none of them works.

The best I could do is download it from here: https://nomads.ncep.noaa.gov/cgi-bin/filter_fnl.pl

it's the original data source of QSIM but never since it changed a little bit on it's folder structure...

And the selection I made by guess was like this:

I can't verify it as QSIM doesn't show me what's the data, only the output of fuel calculation, but so far it seems make sense.

If I select more data level, including the 850/750mb...level, things seems starting to get wrong, without QSIM taking aware....