I am not quite certain what you want to know, but you are lucky as in Over the Front
Vol. 24 Issue 3 (Autumn 2009) an article has appeared from Jack Herris about the Hansa-Brandenburg KDW and derivatives. Answers to your questions may be found there.
The same issue also contains an article by Ron Kintner - The Brandenburg KDW Operational history.
Typical that in the same issue in different articles the machine was named Hansa-Brandenburg KDW and Brandenburg KDW by different authors
Cheers
Kees