Maybe I don't understand or maybe its not possible except in a design program like Blender...I created a tailhook.dae in Sketchup...looks nice in my opinion...it is a simple cylinder hook for a 1930s biplane. I can open the model of the aircraft without the hook in MDCx no problem. I also open the attached object editor which I have successfully used to attach deck cables; hard deck platform and lights to an aircraft carrier model this past week all good. This particular aircraft, the Hawk II was converted to a Navy version by Curtiss called the BFC-2 but since the designer did not create the Navy version only the military/civilian version it has no hook. I don't assume to animate it because with the tailhook section in aircraft.cfg, FSX(A) "recognizes" a hook and the airplane lands just fine on the deck. I know MDCx animates but maybe after I manage to attach it visibily to the aircraft model. After all this explanation, how do I do this. I exported the dae into an FSX.bgl and loaded it into the scenery library in ADEx. I copied the GUID. I open the attach object editor; ADD library object; paste in the GUID but then after pressing ENTER the box just sits there and nothing appears on the model. HELP!