About BlackBox

BlackBox3 constructs an xml diagnostic gauge that can be used to display in readout form or HDD file the numerical or string values of all or selected A:, E:, G:*, L:, and P: variables of the gauge you are editing/building. It can display important parameters such as L: and A: variables, booleans, enums, etc., that are not often displayed directly by the gauge you are building. As such, it is very useful for debugging xml gauge logic; you can see what all variables are doing in real time as MS Flight Simulator flies.

The BlackBox3 application can be used with either FS9 or FSX. If file (hard drive) output option is wanted, then installation of the Logger module is required. Logger can be downloaded from this website. Please follow the installation instructions for Logger as well as the Setup instructions for Blackbox3 which are included in the Help file for each product.


BlackBox3 Application   BlackBox3 Gauge   BlackBox3 Logger CSV Output


  • Bob McElrath - testing, suggestions, documentation
  • Tom Aguilo - testing and suggestions
  • Yusuke Kamiyamane - Icons


Feedback is solicited and welcome.