public static double GetBestMomentaryFailureRate(Part part, string alias) { ITestFlightCore core = TestFlightInterface.GetCore(part, alias); if (core == null) { return(-1); } MomentaryFailureRate mfr = core.GetBestMomentaryFailureRate(); if (mfr.valid) { return(mfr.failureRate); } else { return(-1); } }