RE: Balsa USA Bristol M1 conversion to electric - how to?
Hi Walt
Yep, the M1 is for sure no racer. Altough I think that the spinner has also some effect on the speed of the plane. There is a distinct sound to hear when the plane has reached a certain speed. Kind of turbine effect I think.
And the spinner is selfmade, as, as you have experienced surely too, there is no spinner commercially available. The base plate is made from 1/8" aluminium, and the bowl is made from glass fiber. The GF bowl was formed into one of those hollow styro half-spheres that you find in the crafts section of hobby stores.
The whole assembly was a real "PITA" to balance, but worth every invested hour.
Greetings Robin