-void FGAIBallistic::unbind() {
-// FGAIBase::unbind();
-
- props->untie("sim/time/elapsed-sec");
- props->untie("mass-slug");
- props->untie("material/solid");
- props->untie("altitude-agl-ft");
- props->untie("controls/slave-to-ac");
- props->untie("controls/invisible");
-
- if(_external_force || _slave_to_ac){
- props->untie("position/global-y");
- props->untie("position/global-x");
- props->untie("position/global-z");
- props->untie("velocities/vertical-speed-fps");
- props->untie("velocities/true-airspeed-kt");
- props->untie("velocities/horizontal-speed-fps");
- props->untie("position/altitude-ft");
- props->untie("position/latitude-deg");
- props->untie("position/longitude-deg");
- props->untie("position/ht-agl-ft");
- props->untie("orientation/hdg-deg");
- props->untie("orientation/pitch-deg");
- props->untie("orientation/roll-deg");
- props->untie("controls/force_stabilized");
- props->untie("position/load-offset");
- props->untie("load/distance-to-hitch-ft");
- props->untie("load/elevation-to-hitch-deg");
- props->untie("load/bearing-to-hitch-deg");
- props->untie("material/load-resistance");
- }
-}
-