-// reset flight params to a specific position
-// int fgBalloonSimInit(double dt, FGInterface& f);
-
-// update position based on inputs, positions, velocities, etc.
-// int fgBalloonSimUpdate(FGInterface& f, int multiloop);
-
-// Convert from the FGInterface struct to the BalloonSim
-// int FGInterface_2_fgBalloonSim (FGInterface& f);
-
-// Convert from the BalloonSim to the FGInterface struct
-// int fgBalloonSim_2_FGInterface (FGInterface& f);