<page_title> List of RLM aircraft designations </page_title> <section_title> 301-400 </section_title> <table> <cell> 8-341 </cell> <cell> Berlin B 9 </cell> <cell> research aircraft (prone pilot). Refer to Akaflieg Berlin. </cell> </table>
The B9 was a research aircraft with the pilot lying in a prone position of the RLM designation 8-341.