Foundation Franklin Refit
The first task is to disassemble the reduction gear, clean and re oil it.
The gear box is powered by a 12 volt dumas motor. The reduction is 5 to one. The top section of the assembly has the Dumas coupler. The bottom coupler is much larger and is needed to turn the 4 inch prop. I manufactured the unit to fit backwards in the model under the salvage hatch. The 5 to one reduction gives very slow speeds and is very quiet.
At full throttle the ship cruises wit a realistic bow wave.