I have a B43 that runs all day on 200 watts.
Not fast but runs on and on and on. like a clock.
The point of the turbine, IMH, is fun, fun, fun.
Torque, well if that is what you want you'll
probably have to go beyond the original wattage.
How about I send it down and we find out. It
shouldn't be to tough to set it up.
Wayne