The newest version of DATCOM+ is available on the DATCOM web page at: <http://www.holycows.net/datcom> www.holycows.net/datcom We have a vertical tail, engines, JIFF is back, and more....
Downloads January 10, 2008 Version 2.3 Windows datcom_install_2.3.exe <http://holycows.net/datcom/datcom_install_2.3.exe> Linux datcom_linux.2.3.tar <http://holycows.net/datcom/datcom_linux.2.3.tar> Cygwin datcom_cygwin.2.3.tar <http://holycows.net/datcom/datcom_cygwin.2.3.tar> Digital Datcom User's Manual Digital_Datcom_Users_Manual_1.1.pdf <http://holycows.net/datcom/Digital_Datcom_Users_Manual_1.1.pdf> Lots of changes for this version, including: 1. Installation * Unified the installation program between Vista and XP (XP also handled Windows 2000). Only one installation program now required for Windows. * Corrected some of the installation problems associated with environment variables. 2. DATCOM programs * Corrections to PREDAT to make it friendlier to files from the old Datcom program from the USAF. * Changed the format for all examples to a more compact format, to make it easier to read. * Added some more examples. Now have a total of 6 examples, covering many of the types of aircraft. They aren't all perfect, though. The best example is still the Citation, as it has symmetric and asymmetric flaps. * Split the JSBSim output into two XML files, the aerodynamic section, and everything else. JSBSim now supports include files for the aerodynamics, so this allows you to build your JSBSim model, and just include the aerodynamic coefficients. If you wish to rerun DATCOM+, it just makes your life a little easier. * Corrected some issues with bad or incorrect output for some coefficients in the JSBSim and LFIPlot output files. Some of the flap angles were coming out negative. 3. AC3D output * Added vertical stabilizer and ventral fin to AC3D output. * Added jet engines and approximations for prop engine nacelles to AC3D output. There are no pylons displayed. I don't know if Datcom takes them into account. * Corrected errors in wing generation * Fancier control of AC3Dview program. * Still having issues with drawing aft fuselages properly. See the B-737 example to see what I mean. 4. JIFF * Got Agostino De Marco's great plotting program JIFF working again, and modified it to accept the two XML files as detailed above. It will accept an input file with everything contained in one file, or just the aerodynamics section (e.g. citation_aero.xml) generated by DATCOM+. 5. Documentation * Removed the Digital Datcom User's Guide from the installation program. It is now being maintained separately, and it just added a lot of bulk to the installation packages. Started adding comments to the Digital Datcom User's Manual, when I figure out something better than the manual explains it. I also try to incorporate typo corrections, so if you find any, send them to me. Started version numbers on it, since it may be updated at different intervals than the installation program. *
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