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Public Domain Aeronautical Software (PDAS)  

Last updated 13 February 2007
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13 February 2007 - MakeWgs does not read the value of YNOSE.
Yes, this is a real obvious error and fortunately, it is easily fixed. You may download the file makewgs.zip that has the revised source code and executables for Windows and Macintosh OS X. Thanks to Leo McKinney for spotting this one.

21 July 2005 - VuCalc program (isentropic flow)
The VuCalc program gives erroneous answers when using the subsonic option specifying large values of area ratio. You may download a corrected version (vucalc.zip, 217 KB) from this site.

I am leaving the note about Unix end-of-line problem. For version 7, I have made Unix input files for PanAir, Datcom, naca456 that will run without modification. But, this is a continuing problem that will be with us as long as there are different operating systems with different end-of-line conventions. When you pick up a file made on DOS or Windows and try to use it unmodified on Linux, the extra CR characters may be interpreted as data, especially when using pseudo-namelist input in Datcom. PanAir can also be fooled by this.

6 April 2001 - If you are running PanAir on a Unix system, you may encounter fatal execution errors if you use the sample files on the disc as test cases. This is because they are MS-DOS style text files and each line is terminated with a carriage return and a line feed. For Unix, you want the line feed but not the carriage return. There are a number of utilities on Unix that will do this conversion. The command
    col -bx
seems to do the job and some text editors will do it (you might have to Import rather than Open).
Thanks to Sven Kassbohm for pointing out this one.

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Public Domain Aeronautical Software (PDAS)