I have a flying body (no gravity) on which I like connect second body (gravity used) with a lower mass. So far I have tested the SpringJoint, HingeJoint and ConfigurebleJoint with similar results. By the time I connect the two bodies the lower mass body starts moving but over time the connected body looses its inertia. In conclusion the second body is just hanging under the flying body only commuting a little bit when I steer the flying object.

What I want to reach is that my flying body drags the connected body like a plane is dragging a box. Thanks i advance...

is anyone here at least one who is able to answer sophisticated questions...