FSX Lift Reserve Indicator. This is a rendition of the RW Lift Reserve Indicator (LRI) for FSX general aviation aircraft. It will give you an idea of how much speed and AoA remain before the aircraft enters a stall condition. It has an FS2004/FS2002 version included. Testing in GA only for FS2002, FS2004, and FSX shows that it should be universal. A couple of basic panel. cfg editing examples are included, but, a familiarity with adding gauges to Panels/Windows is recommended. By Don Bodenstedt.