I'm very interested in purchasing Radar Contact, as I can't stand the native FSX ATC especially while on IFR flights, but I'm wondering how RC handles updates to STARS/SIDS/approaches, which is a big complaint I have using the FSX ATC. What database does is use?I predominately now fly Flight1's Cessna Mustang, which is an updateable G1000 platform, has all the SIDS/STARS/approaches, and can be updated with Navigraph as those TPPs change. I can also fly WAAS GPS approaches. The problem with FSX's ATC is that it's so old that it doesn't have updated choices in the approach you want. For example, I was flying to 3A1 which has a GPS 2 approach, loaded it in my Mustang's G1000, but ATC didn't have that as an option, so I couldn't get cleared for that approach. I want to fly any real-world approach in FSX, and I'm hoping RC will allow me to use ATC to get there.Sounds like an awesome addon for FSX.Thanks.Mark

http://forums1.avsim.net/index.php?showtopic=279054In addition, RC4 gets airport coordinates from your installed scenery as well as runways position and properties plus ILS/LLZ frequencies. RC4 has its own comms tuning table.Where RC does not have the runway type of approach listed you can still request that runway and then an IAP that lets you use your own nav for the last thirty miles.If you have a flight planner that exports plan files with SIDS/STARS expanded into waypoints RC will follow those until conditions mentioned in that thread occur.The biggest issue is sync of your planner SID/STAR database with your nav equipment database. RC uses the waypoint coordinates and labels only from your plan plus the information derived from scenery.That thread goes into more detail.