Old Royal B-17 Conversion

[eli5539]

I have an Old Royal B-17 that I am changing over to electric the motors I am going to use have a 4mm shaft. Looking for 3 bladed scale looking propellers some where in the 9-7 range. The FMS B-25 spinners and prop look nice but I do not know the shaft diameter, anyone know the size and if they can be modified or any other ideas would be helpful

[TiredIronGRB]

Welcome to Hobby Squawk! The FMS B-25 props and hubs are 4mm as are the HobbyKing 1875mm B-17 props, either would be a good choice.

[eli5539]

Perfect thank you

[Ron1950]

wow,,, I remember royal kits...you got a box full of square blocks of bulsa and had to carve and sand everything to the shap of a airplane lol...thank goodness for foamies