After 3 days of beating my head against the comp--I found a work around.
Modified the Arado also to be able to park it on water. (the muti-uses of type 305)
Was not able to get the later versions of pack 3d to accept any dat file from any aircraft unit so was unable to use pk3d to change the positions of the obj. Instead, imported all objects to wings except for fuselage and scaled to 0% and exported-then imported and assembled and combined all objects and exported it as the fuselage obj. only glitch in this method was the mrk obj's that provided the german crosses looked like below pic so I deleted them--due to this- finished stuka(above pic) is without the cross details--so gonna have to reskin it then onto the airport terrain part.
