Hi to all, some time ago I wrote an e-mail to Zvezda and got an answer.
The content was about the "inside of the missile-tube".

Some days ago I found very interesting correction-sets:

http://lvm-studios.com/project/topol72-detail-kit-zvezda-topol-172/

and the civilian version.

http://lvm-studios.com/project/start-1-conversion-kit-172/

greetings...
Soeren