+void fgReInitSubsystems();
+
+
+// Set the initial position based on presets (or defaults)
+bool fgInitPosition();
+
+
+// Listen to /sim/tower/airport-id and set tower view position accordingly
+void fgInitTowerLocationListener();
+
+
+// Initialize various time dependent systems (lighting, sun position, etc.)
+// returns a new instance of the SGTime class
+SGTime *fgInitTime();
+
+// set up a time offset (aka warp) if one is specified
+void fgInitTimeOffset();
+