Impeller mount for Multiplex Funray.
One Version for a 65mm Diameter and one for a 70mm Diameter Impeller.
You only need 3 screws for mounting the Impeller in the Duct and 2 for mounting the Duct in the holder, so u can easy use the Plane without the impeller as a Sailplane too.
To mount the pinnacle your can use M3 thread inserts or screw it in the plastic.
Feel free to contact me for additional Information or for a full printed version.