// FGNasalModelData class. If sgLoad3DModel() is called with a pointer to
-// such a class, then the modelLoaded() function is executed by the loader,
-// and the destructor when the model branch is removed from the scene graph.
-// They are used for calling a model's <load> and <unload> scripts.
+// such a class, then it lets modelLoaded() run the <load> script, and the
+// destructor the <unload> script. The latter happens when the model branch
+// is removed from the scene graph.
void FGNasalModelData::modelLoaded(const string& path, SGPropertyNode *prop,
ssgBranch *)