An important one is with BAE Systems, for whom Opnet does modeling, simulation and research for big initiatives like the U.S. Army's Future Combat System and the Joint Tactical Radio System.
"We like to survey the circuits with GPS (Global Positioning Systems) and I think that gives you the ability to very accurately put those parameters into your simulation tools, " he said.
In his presentation, Teso explained that he experimented on used FMS hardware he bought from eBay and FMS training simulation software that was advertised as containing some or all of the same code as the systems in real planes.