Rhein-Flugzeugbau GmbH was a German aircraft manufacturer. The company was established at Krefeld, Germany in 1955, and later moved to Mönchengladbach.
The RFB/Grumman American Fanliner was an experimental German light aircraft of the 1970s, propelled by a Wankel engine driving a ducted fan. A joint venture between the German company Rhein-Flugzeugba