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Hugh, I would like to see those photographs, I got the original (I think) layshaft with mine which I understand is uncommon.
I was under the impression that the high speed version (4,000 rpm) used a hard spindle in bronze bearings but that the standard (2100rpm) used a soft spindle in cast iron.
Mine are both the ME version but the later one was modded to allow for the higher 2100 RPM and less prone to break the headstock if you get heavy handed Jo
AS, What are we looking at, bearing in mind that my experience of electric flight began and ended with a 540 motor and 7.2V nicads (with a Mole charger - remember them?).
Something like this?http://www.hobbyking.co.uk/hobbyking/store/__18178__Turnigy_Aerodrive_SK3_6354_245kv_Brushless_Outrunner_Motor.html or are there bigger, torquier, slower, cheaper ones about?So, if I understand correctly 12v x 245 gives 2940 rpm. 3:1 reduction should be doable.
What would I be looking for in terms of a PSU and speed controller?