+ static SGPropertyNode *nav_freq
+ = fgGetNode("/instrumentation/nav/frequencies/selected-mhz", true);
+ static SGPropertyNode *nav_target_radial
+ = fgGetNode("/instrumentation/nav/radials/target-radial-deg", true);
+ static SGPropertyNode *nav_inrange
+ = fgGetNode("/instrumentation/nav/in-range", true);
+ static SGPropertyNode *nav_loc
+ = fgGetNode("/instrumentation/nav/nav-loc", true);
+ static SGPropertyNode *nav_gs_dist_signed
+ = fgGetNode("/instrumentation/nav/gs-distance", true);
+ static SGPropertyNode *nav_loc_dist
+ = fgGetNode("/instrumentation/nav/nav-distance", true);
+ static SGPropertyNode *nav_reciprocal_radial
+ = fgGetNode("/instrumentation/nav/radials/reciprocal-radial-deg", true);
+ static SGPropertyNode *nav_gs_deflection
+ = fgGetNode("/instrumentation/nav/gs-needle-deflection", true);
+ unsigned int i;
+
+ static FlightProperties* fdm_state = new FlightProperties;